my 54 year old husband has a history of recent onset A-Fib, sleep apnea and hypertension. He is very active, works out daily and eats healthy (mostly). He is receiving medical treatment for the A-Fib- Multaq, HTN- Losartan and wears CPAP every night. He only averages about 3-4 hours of sleep per night. On occasion, he can walk up a flight of stairs or just walk in the mall and has sudden hand tremors and head pain in the back of his head and pressure behind his eyes. He is 6 3 and weighs 260lbs. HIs primary MD and Cardiologist have offered no reason for this low impact issue. He has these same issues when playing basket ball but never after riding exercise bike for 30 minutes. I am a nurse and very much would like ideas of who he should see