Pah symptoms and conditions

I started taking Welchol in February of 2009. Took 4-6 pills a day. I began to have heart palpitations, and flutterings of the heart soon after. I did not see any connection to my symptoms with the Welchol. I went to the doctor and he did a CT and told me that the heart was fine. He increased my heart medication and still the palpitations went on. Then, last week, I forgot to take the Welchol...didn't take it for a whole day and suddenly the heart palpitations ceased. I'm into 4 days without the Welchol and have had no heart palpitations whatsoever. I will stay off it for awhile...then try it again, and if the palpitations return, I will know who the culprit is. Is anyone else out there having this problem. I did have the tiredness and after reading all these side affects, I now know the reason why.

I started taking thyroxine about 6 weeks ago - i went to the doc with tingling fingers, bloods showed tsh 34 so doc gave me 50mg thyroxine. Felt awful within a few days i was getting palpitations and felt like my skin was crawling. I couldn't bear even the slightest noise. I had diarrhea (cant spell) fast heart rate, the shakes and couldn't handle lots of people in a room. I am a teacher so it became difficult for me to work. I went up to 100 it got worse, until in the end I decided to stop them.
I am going to wait and see but I would rather be hypo than have these symptoms, my doc said you will feel great soon, pah what a load of c%%%