Avelox and urge

I went to my doctor this past Thursday because I was experiencing ringing in my ears for about a month. No other symptoms other than the ringing - and it was just quite annoying. Doc put me on Avelox and Prednisone for a sinus infection. Took the first dose Thursday and the second Friday morning. Within and hour, the back of my head and neck were so full of intense pressure and pain. I felt dizzy, unsteady, sweaty and panicky. Called the doc who said that I wouldn't react that fast, and it was probably just part of the sinus infection. Continued to take both drugs all weekend, but still felt the intense pain and pressure after taking the Avelox. Last night, woke up around midnight with severe panic attack, disorientation, pain and pressure in the back of my head and neck - Scary! I called my doc and I told him I'm not taking it anymore. I had NO symptoms when I went to see him and left with more "stuff" going on in my head now! I'm going to see an ENT now.