Why these are here
Most people never need these. They're here so you don't have to guess, and none of them means anything is your fault.
Call 999
Call 999 for chest pain that feels tight or squeezing or spreads to your arms, neck or jaw, severe difficulty breathing, or collapse. Call 999 too if difficulty breathing comes on suddenly, or you have pain in your chest or upper back: these can be signs of a blood clot in the lungs (a pulmonary embolism). Don't drive yourself to A&E (accident and emergency).
The NHS also says call 999 or go to A&E for possible sepsis, if someone is breathing very fast; is confused, has slurred speech or isn't making sense; has blue, pale or blotchy skin; has a very high or very low temperature, feels hot or cold to the touch, or is shivery; or has a rash that doesn't fade when you press it.
Sources 66, 67, 68
During treatment: your 24-hour number
Use the 24-hour number you were given, or NHS 111 if you can't reach them, if during treatment you have:
- A temperature over 37.5°C or below 36°C, or you suddenly feel unwell even with a normal temperature.
- Signs of infection, such as feeling shivery, a sore throat, a cough, diarrhoea, or needing to pee a lot or pain when peeing.
- Throbbing or cramping pain, swelling and warmth in a leg or arm, or coughing up blood, which can be signs of a blood clot. Sudden breathlessness or chest pain means 999 (see above).
Source 69
After a mastectomy
Call 111, or get help from 111 online, if you've recently had a mastectomy and have:
- Sudden pain or swelling.
- Bleeding from your wounds.
- Sudden loss of feeling in your arm.
- Pain and swelling in one leg, which can be a blood clot (deep vein thrombosis, or DVT): call 999 instead if you're also breathless or have chest pain.
Sources 22, 67
Swelling in your arm, hand, breast or chest
Swelling, tightness, heaviness, aching, tingling or stiffness in the arm, hand, fingers, breast, chest wall or shoulder on the side you had treatment for breast cancer: get advice from your breast care nurse, treatment team or GP as soon as you notice it. Discomfort can be an early sign of lymphoedema.
New swelling with no signs of a clot or infection: see your GP or cancer team, who may refer you to a lymphoedema service.
Signs of infection (cellulitis) or a blood clot in a swollen limb need urgent medical attention. If the swollen or at-risk area changes during or after exercise, stop and contact your lymphoedema specialist.
Sources 57, 67, 70, 71
Hot, painful skin, or a clot
Skin that is painful, hot and swollen can be cellulitis: ask for an urgent GP appointment or get help from NHS 111. Call 999 or go to A&E if you also have a very high temperature or feel hot, cold or shivery, have a fast heartbeat or fast breathing, feel dizzy, faint or confused, or have purple patches on your skin.
Same day (urgent GP appointment or NHS 111): throbbing pain in one leg (rarely both), usually the calf or thigh; swelling in one leg (rarely both); red, blue or darkened skin around the painful area, which may be harder to see on brown or black skin; or swollen veins. This can be a deep vein thrombosis (DVT). It is more likely after surgery, a hospital stay, 3 or more days in bed, a journey of over 4 hours, pregnancy or a recent birth, cancer, a previous clot, or contraception or hormone replacement therapy (HRT) that contains oestrogen.
Call 999 or go to A&E if breathing suddenly becomes difficult, if pain in your chest or upper back comes on suddenly with breathlessness or a very fast heartbeat, or if someone passes out. Do not drive yourself. It can be a blood clot that has reached the lungs.
Sources 70, 67, 72
A new lump or change
See a GP if you have a lump or swelling in your breast, chest or armpit, or any change in your breasts or nipples that is not normal for you.
Source 73
Stop and speak to a doctor
Macmillan says stop exercising, and speak to a doctor straight away, if you get any sudden symptoms, including:
- Dizziness, chest pain, a racing heart, breathing problems or feeling sick.
- Unusual back or bone pain, or unusual muscle pain.
- A headache that doesn't go away.
Source 33
During treatment: blood counts, numb feet and sore skin
With a low white cell count, your doctor may advise avoiding busy places such as gyms and pools: Macmillan suggests online classes. With low platelets, exercise gently and avoid high-impact activities. With anaemia, rest when you need to.
With nerve damage after some chemotherapy, Macmillan says to get advice if you feel unsteady and to check your feet regularly, and an exercise bike may suit you better than running or brisk walking. In Pilates, do standing balance work holding a support, and use fists or forearms if your hands are numb (our suggestion). In one trial, Pilates eased nerve pain and improved a stepping balance test.
Macmillan doesn't recommend swimming while your skin is irritated by radiotherapy. Mat Pilates is a good swap if lying on your back or side is comfortable (our suggestion).
Sources 33, 74, 75
Cancer in the bones
If breast cancer has spread to your bones, read the bone and spinal cord warning signs on our Pilates for cancer guide before you start, and ask your cancer team first.
What's normal
Some soreness or stiffness for 2 to 3 days after exercise, and tiredness during it, is common. If you feel very sore or very tired, do a bit less next time.
Source 33
Chest pain or fainting during exercise: call 999
Some cancer treatments can affect how the heart works (our summary of Macmillan's heart health page). Call 999 if:
- You get sudden pain or discomfort in your chest that doesn't go away; it can feel like squeezing or pressure, burning or indigestion.
- The pain spreads to your left or right arm, or your neck, jaw, stomach or back.
- You have chest pain and feel sweaty, sick, light-headed or short of breath.
- Someone faints while exercising, can't be woken within 1 minute, or has chest pain or a pounding, fluttering or irregular heartbeat.
Sources 66, 76, 77, 28
Breathlessness
Call 999 or go to A&E (accident and emergency) straight away for severe difficulty breathing (gasping, choking or not able to get words out), a chest that feels tight or heavy, pain that spreads to your arms, back, neck and jaw, lips or skin turning very pale, blue or grey, or sudden confusion. If you're more short of breath than usual, or your heart is racing, fluttering or skipping beats, contact NHS 111.
Source 78
Stop and get advice if
You feel any pain or become unwell, as the NHS advises for its Pilates videos, and especially for chest pain or pressure, unusual breathlessness, dizziness or fainting. If you have a health problem, an injury or any symptoms, get advice from a healthcare professional, such as a GP, before you start.
Source 79