I'm not sure what I had but my sister (a doctor) thinks it was a sinus infection/viral that turned infectious. I did end up on z-pack which helped my chest but it all moved to my sinuses. She actually overnighted me amoxicillan (sp?) b/c our doctors aren't very heplful with antibiotics even after a month of being sick. Thankfully I am really doing better. Rode 25mi today. The 4 tissues I packed were NOT enough though! UGH!.... I need to strap a whole kleenex box on my bike next ride