I've been on Wellbutrin for 3 years. My hair has been falling ou...

I've been on Wellbutrin for 3 years. My hair has been falling out more and more every month. My scalp itches horribly! It feels almost as though bugs are crawling all over it. I am irritable and have dramatic mood swings. The final straw, though, was recently when I had a blood test to find that my white and red blood cell counts had become dangerously low, and my red blood cells were swollen (macrocytic anemia). I'm now training myself off of Wellbutrin. I tried dropping to a quarter dose and felt flu-like symptoms (chills, extreme tiredness, dizziness) and extraordinary appetite (gaining 10 lbs in week 1). I also became unable to handle simple tasks at work, and excessively negative in demeanor. I'm now back up to 1 pill and the chills have stopped. I am hoping that I can go back down to 1/2 pill gradually. Will my hair grow back? Is the liver/blood damage reversible? Has anyone kicked the Wellbutrin habit and recovered fully? Please help. Thank you in advance.