first day I tarted it I was a bit nervous and what not, the doctor has me on 75 mg tablets 2 times daily. So I took 1 tablet yesterday morning, I was nervous about it, just afraid of any negative side effects. then throughout the day I felt okay. then I took it at night, went out to the store, came home, laid down, and started having a panic attack, first day on the meds so thats understandable. Then this morning I wake up, take it at 11:00 am. I've felt anxious ever since. My heart rate is elevated, I feel tired, and like...If i get up to do something. my muscles get really tired really quick and my heart rate elevates more, when i sit down it slows down and speeds up, slows down and speeds up. and then it'll feel funny when it beats. I'm really really really nervous and if someone mentions any heart defects that I cojuld have, I'd prolly have at terrible panic attack i bet. ugh..i'm scared.