Hello-I have a question. Silly me, a friend of mine said that she took Synthroid and lost alot of weight. So, I went to the Dr. and he gave me 100mcg. I have been on it for approx. 4 weeks. Although, I have not changed my eating habits, I have gained 10 pounds. Not the result I was hoping for. I admit, it was silly to even try when the Dr. got my test results back he said thyroid was normal, but went ahead and gave me a rx of Synthroid. Do you think this is what is making me gain so much weight?? Can I stop taking the Synthroid cold turkey-which is what I am planning on doing as soon as I find out it won't cause any damage. What would the side effects be? I really don't know hardly anything about the thyroid and feel really stupid taking this rx. Is Synthroid really suppose to help with weight loss? Please advise asap! Thanks!