Hi. I'm so glad I found this site. I need some answers and hope that I will be able to find some. I'm 31 years old, married with 2 children, ages 3 and 1. I've always had palpitations that earlier this year was diagnosed as PACs, PVCs, and SVTs. I had a 24 hour holter test in March that showed my average heart rate to be 91 with several hours over 100 bpm, and an hour where I was over 120 bpm. My cardiologist was not worried and so, in I go for a diagnostic laparoscopy for endometriosis. Several hours after the procedure it happened. I got up and felt this warm wave rush from my belly to my chest (thank goodness I was already in the ER for a catheter because I was unable to void). My heart rate was around 130 lying down. I kept feeling the rushes of heat and then my heart rate would increase dramatically. I was admitted to the hospital where I was monitored for 2 days. Eventually, my heart rate was pretty normal when lying or sitting, but would dramatically increase whenever I got up. My cardiologist discharged me with the diagnosis of inappropriate sinus tachycardia. Well, after coming home and researching on the net, I knew that I did not have IST - I had POTS. I just got back from seeing Dr. Fouad at the Cleveland Clinic who comfirmed that is what it is. She took wonderful notes and history from me, the testing was wonderful. They told me I had POTS and basically wanted me to leave?!?! I started crying. I want someone to help me with this and they seemed uninterested. I'm hoping maybe someone could answer the questions that they "didn't have time" to answer... 1. What is the long-term effect on my heart? Isn't it bad that my heart has been racing like this for who knows how long? Is my heart damaged? If it's not damaged yet, will it become damaged? 2. At what point do I need to stop what I'm doing? My resting heart rate (with beta blocker nadolol) is around 65-75. The nurse at Cleveland Clinic told me to rest at 90. If I rest at 90, I'd be sitting around all day long. For example, if I'm cleaning at 110, should I stop even though I feel okay? 3. What is florineff (sp)? Any bad/good results from this drug? 4. Right now, all I have is the increased heart rate (weird feelings in my chest when this happens). Will I get more symptoms? Thank you so much for reading. I know it is so long. Thank you for your patience. Scared and lonely, Jennifer