Zithromax Z-Pak and headaches

took zpak before and no problems, this time i am on the three day dose and feel aweful. developed canker sore on side of tongue, taste bud sores,left eye is irritated, headaches, get hot then cold---sweat, dizzy, can't concentrait---driving is down right dangerous--sometimes just walking is an accident waiting to happen, always sleepy, taste of artificial sweetner is heightened to a degree that i want to vomit, the worst part is the NAUSSIA!!!! Ugh. Don't ever want the 3 dose again.

On my 5th day of taking it for a sinus infection, slight headaches in the back of my head. Otherwise, I have no side effects.

Prescribed 3 day z pak after Thanksgiving 2004 for strep throat and sinus infection. Had severe abdominal pain during course and a couple of days afterwards. Also had swollen glands a few days after taking. Ended up back at the doctor for severe vertigo and headaches two days before Christmas. After all of the pain I went through the z pak did not clear up my sinus infection and I was put on another antibiotic.