I have been having a great deal of head pressure in the back, side and top of my head ever since a sinus infection 2 months ago. I had 2 full weeks of antibiotics, and my headaches left for a short time, but a sensation of fullness stayed in my left ear. This has caused me to feel off balance, and foggy headed, like I may pass out at times. I just had an MRI and CT of the sinuses that says I have mild mucosal thickening of the sphenoid sinuses and a mild septal deviation. What should I do about this? I know I need to see an ENT and will, but it will take some time to get in to see one. Do I need to worry about this, since it is ongoing and I now picked up some other sinus drainage...yellow mucus issue from my husband. Do I need antibiotics right away, or am I overly concerned by this foggy, dizzyish, ear fullness feeling? I get sinus infections at least 2 times per year and I am not aware of any allergies, but maybe there is something that should be tested?