Unexplained weight loss symptoms and conditions

I am a 37 year old man who weighed approximately 188lbs when I prescribed 20mg of Lipitor and fish oil to combat my high triglycerides(437) and my high total cholesterol(212) in August of 2009. I have a high stress job and was experiencing occasional chest pain and heart palpitations. In addition, I have psoriasis and psoriasis arthritis and take Enbrel injections weekly. Prior to taking Lipitor, I had normal liver function tests.

At the same time that I began the fish oil and Lipitor, I began to change my eating habits and began a regular exercise routine. I began to feel better and lose weight. I was enthused about my progress. I took my Lipitor at night, however, I found it difficult to get up in the mornings and I was a little more tired than normal.

Roughly 3 months after beginning Lipitor, I developed a condition of EXTREME thirst. Blood tests from my doctor revealed elevated Liver Levels. His first inclination was that it was Lipitor so I stopped taking it ASAP. A subsequent test a week later indicated little improvement in my liver tests. My doctor suggested we give it two more weeks to test it. I just got my tests back and they actually increased!(ALT 197, AST 90, ALP 571).

My cardiologist does not have anything to suggest other than the possibility of a fatty liver, gall stones, or liver disease. His recommendation was that I get an ultrasound next week of my liver and meet with a GI doctor.

My excessive thirst and fatigue continues. I am not jaundiced but I do frequently experience dark urine. I weigh myself every morning and my weight is now down to 174. I seem to be losing very gradual weight now though my eating habits have returned to my old routine. This worries me. I am now worried that this drug triggered something terrible in my system. Does anyone have any advice?

Zomig works great for my migraines. I do however experience heat sensitivity, and unexplained weight loss. I went from a size 4 jeans to a size 0 in two months after starting Zomig( no complaints about that though)