Stop and get medical help
If you get chest pain or pressure, feel faint or dizzy, are unusually breathless, or your heart races or beats irregularly during exercise, as our plans advise. The American Heart Association says these need immediate medical evaluation.
Source 16
Call 999 (911 in the US)
For chest pain that doesn't go away, feels tight or like squeezing, or spreads to your arms, neck, jaw, stomach or back, or comes with sweating, feeling sick, light-headedness or breathlessness; severe difficulty breathing; someone who faints while exercising; palpitations that don't go away, or come with chest pain, shortness of breath or feeling faint; a headache that starts suddenly and is extremely painful; or signs of a stroke, such as a drooping face, a weak arm, slurred speech or sudden loss or blurring of vision, even if they pass. Don't drive yourself to A&E.
Sources 28, 29, 30, 31, 32, 33, 34, 35
Check before you start
If you haven't exercised for some time or have a medical condition, speak to your GP first, as the NHS advises. Get advice before hard pressing or head-down work if your blood pressure is uncontrolled, or you have heart disease or chest pain when you're active, a pacemaker or defibrillator, diabetic eye disease, glaucoma, a hernia, recent eye or tummy surgery, or you're pregnant, as our breathing guide lists.
Source 36
A headache brought on by exercise
A headache triggered or made worse by coughing, sneezing, bending down or exercising needs an urgent GP appointment or NHS 111 (in the US, your doctor or urgent care). Stop head-down and heavy pressing work until it's been checked (our suggestion, as our breathing guide says).
Source 33
Sudden eye symptoms
Call 999 or go to A&E if glaucoma symptoms come on suddenly, such as intense eye pain, a red eye, tenderness around the eyes, rainbow-coloured circles around bright lights, blurred vision, feeling or being sick, or a headache. With diabetes, ask for an urgent GP appointment or NHS 111 if your eyesight suddenly gets worse or goes blurred.
Sources 37, 38
Dizzy or light-headed
Stop, kneel or lie down until it passes, then get up slowly. See a GP if dizziness won't go away or keeps coming back.
Source 19
A fall from the wall
If you come down onto your hands or shoulder and hear a crack, or your wrist or arm changes shape, goes numb or tingles, or changes colour, call 999 or go to A&E. If it's very painful, swollen or stiff, get help from NHS 111 or an urgent treatment centre. See a GP if wrist pain hasn't improved after 2 weeks.
Sources 39, 40
Your neck and shoulders
Stop if you land heavily on your head, or get neck pain or pins and needles down an arm. Ask for an urgent GP appointment or NHS 111 for sudden or very bad shoulder pain, an arm you can't move, or pins and needles that don't go away; an arm that tingles or feels numb needs an urgent treatment centre or A&E. Our neck pain guide covers the rest.
Sources 41, 42