Sinus infection after??

Who all has had a severe sinus infection after having influenza. I had influenza for over 3 weeks. Felt better for a couple of days. Now I have a severe sinus infection, it hurts up into my eyes, ears, nose, cheeks. Bad into my teeth. I see some spots when I’m dizzy, and I have chills/muscle aches.

I’m trying to avoid antibiotics again. Just wondering if any of you have had this after having influenza.