Hi there, I took this medication for a supposed sinus infection,...

Hi there, I took this medication for a supposed sinus infection, which after taking Azithromycin and than Doxy I have been really sick! I guess I had the flu and I panicked (because I am prone to sinus infections) and went on antibiotics without knowing for sure- after bloodwork and an x-ray there is no infection... so... after taking Doxy for 10 days I have been very exhausted-but mostly, flu like and muscle aches, its on day three after taking the last dose so I hope these muscle aches and tiredness goes away soon. I have noticed in the past that i get the same symptoms, like with Biaxin, and Cipro is really brutal... not to mention that I am allergic to Penicillin and Sulpha... so much fun lol