Our expert says:
Pain can cause vasovagal attacks/fainting spells/syncope causing you to lose consciousness for a few seconds. Another common cause of syncope is a decrease in the amount of blood flowing to the brain as a result of a reduction in the amount of blood being pumped out of the heart. The latter is most often caused by irregular heart beats (arrhythmia). I should not be due to the bean bag. If you have hot flushes you may need to have a urine test too - kidney infection can cause severe back ache and fever/cold shivers.
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