Hello;
welcome to HealthcareMagic
At your age of 56yrs it is important to find the reason of getting pricking sensation and cramp on one side of body.It could be due to deficiency of vitamins;some neurological problem or even in case of
anxiety.It will be better for you to get examined by a doctor to evaluate your problem as the first thing to rule out will be a neurological problem.So get examined by a doctor and if possible take a opinion of a
Neurologist.
Thanks