I had a nasty sinus infection in early december, had 500mg 3x a day of amoxicillin. I felt alot better within 2 days of starting them. Since having the nasty cold and sinusitis I have been left with some pressure in my left ear (is easing slowly this week) but also at the back of my head (left side) and behind left ear I hear a clicking like something is loose in my head moving around (maybe i do have a screw loose, lol!) everytime i walk down the stairs, walk quickly, go over a speed bump in the car.... hard to explain but thats the feeling of the sound, its like pressure. The ballooni n ear feeling is alot better so its slowly settled but im left with this clicking type noise.

Has anyone else had this? what could it be?

Surely I dont' still have a sinus infection if I don't have a fever, green mucus from nose or anything like that? my cold has gone. I had a ct scan last year which showed mild sinus issues but my ENT said it was mild and majority of people have it so to just use a steroid spray which I do use daily.