Hi everybody, I've only posted once on here before, after my initial diagnosis of POTS. I explained about the recent death of my sister, and how that shortly thereafter, I began waking up at night with racing heart. I recently wore a cardiac event monitor, and did a stress echo test. The stress echo was normal with only one PVC prior to excercise and normal sinus tach at 180bpm while on treadmill for 8 mins. I do at times feel light headed after bending over to pick something up, and I also am dizzy ALL THE TIME! My normal B/P is usually 100/60. and sometimes 90/50 while lying down, 100/60 or 110/60 when standing. When I have the tachy episodes at night I feel like a sudden surge of adrenaline from the top of my head to the bottom of my feet, and then bam !! it's off to the races. with HR of up to 198 bpm. The event monitor showed this as normal sinus tachycardia. My B/P goes up to about 150/90. I do feel really shaky the next day, just like now, It happened again at 4am this morn, and needless to say Its been a really bad day. It also seems worse in the am after sleeping, which lately has been very interrupted, I awake afraid of a racing heart even when It's not happening. I've wondered about sleep apnea because when I lie on my back it seems I wake more often with SOB, and fast heart, sometimes gasping for air. I also , at times, get tachy after a full meal, sometimes about 100-115 for about 30 min. I'am soooo confused about what is going on with me. I haven't had a TTT or anything, because my cardio doc said not necessary, He was 99% sure it was POTS. He wants me to take Proamitine and Toprol XL 25mg, but I'am really scared of meds, (always have been). Should I take a BB with a low B/P like mine with at times, a resting HR of 55-60? Has anyone taken Proamitine? Thanks for any advice you can give, I know you cannot diagnose me, but it sure would help knowing if others suffer with these same symptoms, and is this anxiety related to the death of my sister, not to mention the recent diagnosis of my brother, with lung CA, and given 6mos-1yr to live. I come from a very close nit family so this is HUGE for us. Thanks Again, Terri Lynn