Ive been on quite a few antibiotics this past year for chronic sinusitis (surgery), ear infections, and periodontal infection. amox, cipro, levaquin, metronidazole, azithromycin, and doxycycline. is this too much antibiotics? worried of over use?

People do not develop a process where antibiotics won't work. They are not prone to antibiotic resistance. Germs, however can mutate and become resistant to one or several individual antibiotics. Your skin surface and digestive tract are both re-populated with many common bacteria & yeast from your surroundings. A balanced nutrition and probiotics can help your internal system stabilize.

Dr Malerman agreed

You are right to be concerned; antibiotic overuse raises the chance that someday you will have a serious but difficult to treat infection. But there is little risk for immediate harm. The main importance for you is that nonresponse to all these antibiotics is strong evidence your sinusitis etc are not due to infection at all (maybe allergies?), and that non-antibiotic Rx would be more effective.