wow, well i have lyme and mono. the doxy is actually helping this horrible cough i have. but anyway its causing insomnia which is the exact opposite of what i need right now with mono. everything looks out of proportion, like my arms being really long. i just threw up and thats why i looked this up. i have to go to school i don't know how im going to deal with all this during classes, im taking 100 mg 2x daily for lyme.