62 year old man in great health - all of a sudden experiencing pins and needles in hands and bottom of feet. after a few days, pressure in back of head and lightheadedness. symptoms come and go - no rhyme or reason to it. pressure was a little high 150/90 so increased bp medicine to benicar 40mgs with hct of 12.5. pressure came down to 115/75 - thought it was reaction to medicine - stopped it for a week - and symptoms stayed. thought it was stress - started exercising 30 minutes a day - running - some help but symptoms come back - at times when look down get dizzy or lie in bed. have been playing alot of golf and swinging differently - but no back pain - some neck stiffness from new swing. went to cardiologist and going thru - carota artery test, wearing a monitor, nuclear stress and echo. went for blood work up - nothing significant. went to neurologist - mri, mra, mri of spine and vertigo test. waiting for results from cardiologist and neurologist - any ideas what can be causing this