Dear Doc! I have since the last year have been experiencing slower blood rate. Which is If i raise my hand, within 10-15 second, I get a prickly feeling. Also if i sit cross legged for 3-5 mins, legs go numb. Also have notice my memory is become very weak? cannot remember things that I heard 3-5 seconds ago. Are these related, and what do you reckon is the problem. I am a 37 year old male, above average weight, not obese.