Basically there is extensive polyp formation in your sinuses
sinus) and the osteomeatal complex that connects the sinuses is full of fluid.
You now feel (correct me if I am wrong) that your entire head feels like a solid mass, with no air entry through the nostrils and completely blocked.
You must visit your ENT surgeon who requested this CT and he will most likely opt for FESS (functional endoscopic sinus surgery
Also I hope you are not allergic to aspirin
or asthmatic, as this complicates the picture but you would still need the FESS and long term nasal steroid