I have been under extreme stress, and am having symptoms of difficulty walking; i feel pressure and then almost lightheaded and some pain in my head and neck. i cannot sleep either but have always had this problem. My pressure is 110/70 ; my pulse is fine; and my accupuncturist listened to my heart and pulses and swears its all anxiety, but i have walked for years and cannot now especially in the cold. I'm 63 about 5ft 140lbs. I've had lyme disease possibly low thyroid. I feellike my heart is pounding during exertion or rapid walking but when i take my pulse it is fine. i have no insurance so i haven't gone to the doctor. Their is a family history.