I remember feeling very flu-like when I first started lamictal. Aches and pains, headache, swollen glands. I was miserable. It did get better as my dose increased. I didn't have the manicky symptoms though. That would worry me more than anything. Jumping you from 100 to 200 isn't they way it's supposed to be done (not sure I'm understanding you). Lamictal should only be increased 25mg at a time.