last night I could not fall asleep because I kept waking up gasping for air. this lasted for 6 hours even though I was exhausted and went to bed early. I am 44 WM, weigh 150. good BP, cholesterol, ect...dont snore, but have never been tested for sleep apnea. read about "central" apnea...scary. it felt likepart of my body would jerk like it was trying to wake me up, since I could breath normal but wasnt while trying to fall asleep. for months I have been lightheaded (like I am not getting enough oxygen) and the last week my left hand gets a pins and needles feeling,and some numbness down my arm. went to ER the very first time I felt lightheaded and bllod work,EKG, and cat scan were normal. what sould I do?