Thank you for your query.
As such in general EMG doesnt have any side effects.the procedure consists of inserting a needle into muscle.Normal muscles at rest make certain, normal electrical signals when the needle is inserted into them. Then the electrical activity when the muscle is at rest is studied.
As far as generalized numbness
burning pain is concerned it may be due to anxiety
disorder, low calcium level, neuropathy, vitamin B deficiency
, multiple sclerosis
, TIA etc.
if the symptoms persist more than a week then i would suggest you to consult your physician.
wishing you good health.