Update on my blood work. My TSH (thyroid hormone), Kidney function, and Lithium levels are all in the normal range. I told my psychiatrist about the weight gain. She said that it's not unusual to gain 5-10lbs on Lithium at the beginning and then it levels off. She said that in fact, after that happens, some people lose the weight that they gained. My levels were on the low TSH normal levels (however, it's more than it was before). I had about a .9 out of a .5-4.7 expected range before the Lithium two weeks ago. Now it's a 1.4. Yes, that's normal but higher than two weeks ago. I go for testing again in a month and if it's gone even higher then we need to see if we continue with Lithium. That's the update!