I have no first hand knowledge about Lithium to speak of .... But I use to get alot of headaches (lifelong) when I was diagnosed with Fibro One thing I read over and over was to eliminate any and all artifical sweetners and flavors etc .. I noticed a differance in my headaches when I did this ..

Its amazing how hard it is to find foods that arent loaded with fake garbage

((((((Hugs))))))))