Synthroid and stomache

I have read a lot of these blogs and I am seeing that many other people have the same side effects. I was diagnosed with hypothyroidism when I was in 6th or 7th grade I think and I am now a high school senior so about 5 years taking Synthroid. the doctors said that my antibodies had completely destroyed my thyroid gland so I wasn't getting any of the hormones I needed which became very noticeable when I started gaining weight and loosing energy in 5th grade. I haven't really seen any weight gain in a while but I still look like I am overweight. I am 5'6 and 130 lbs so I am about average. Side effects that are also occurring are rapid mood changes, one minute I am happy and something sad happens or I think about something and ill be tearing up. I feel depressed a lot. I am currently on 150 mcg. also during 9th and 10th grade I was put on this drug to stop my puberty so that I could grow more while on the Synthroid I guess it helped a little with height but I still look like a freshman. I don't know if I should stop taking it or keep taking it because I stopped for about a month once and started getting really sick, I would get really bad nose bleeds at random, had constant migraines and felt sick to my stomach. I started taking the Synthroid again and felt fine. I really don't know what to do.

I started synthroid about 6 months ago and I am unhappy. I complained to my OB about my lack on sex drive. He tested my thryroid and said it was the cause. I have always struggled w/ my weight but had it under control. Since I started a low dose of synthroid, I have gained 4 lbs (I am only 5' tall so this means none of my clothes fit) despite running 30 miles per week and watching my diet. My once thick hair is getting thin and my sex drive is no better. Also, my stomache is often bloated.

Had total thyroidectomy 9 months ago and started taking Synthroid immediately thereafter. For the last 4 months I have noticed significant hair thinning. I have always had very thick, healthly looking hair but now it's just dry and brittle all of the time. I always feel tired and bloated around my stomach area in particular. I have always been a size 4-6 but have inexplicably gained 6 pounds in the last month. Is there an alternative to snythroid without these side effects?