Last Saturday, after a very long week and stressful weekend, I started to have a lot of nausea which resulted in vomiting five times that evening. Woke up the next day, feeling a little bit better, yet having no appetite. Monday was fine, ate lunch, then had a lot of diarrhea and vomited that night only once. Tuesday, fine but no appetite, dealing with a lot of anxiety. Wednesday, thought maybe I was withdrawing from my anxiety medication which was causing the nausea, since I hadn't taken it since Saturday night, in fear of it making me more sick. Took the anxiety medication and all was well. Thursday, very very watery diarrhea with a little nausea and no appetite. Woke up that night having a panic attack. Friday, completely fine, appetite somewhat back, until I sat in the back seat of a car and had severe nausea for about five hours with no appetite a long with lightheadedness. Saturday (yesterday), I was completely fine, with my appetite back almost 100%. I woke up this morning with a lot of indigestion and not as great of an appetite. We have thought these symptoms could be withdrawal from Mirtzapine, as I had stopped it completely about two weeks ago. I am on anxiety medicine and a new anti-anxiety to make up for the Mirtzapine and see no negative side effects from it. What could this be? I also have a goiter on my thyroid and show symptoms to have hyper-thyroid, but I have been on synthroid for about four months which is causing the goiter to shrink.