Please help me in identifying the cause and treatment of sinusitis.

Hello doctor,

I have suffered from sinusitis for the last five years. I used to live in a house that had mould issues, and I am not sure if this brought on the sinusitis. I have been using Avamys nasal spray and Texa allergy tablets. For the last three weeks, I have developed a new symptom. I am having a problem with breathing at times. It varies between blocked sinuses to being unable to take full breaths. I have limited mucous discharge and do not know the reasons for the new issues I am having. I have consulted with a cardiologist, and he has found no issues. I do have a ct scan detailing issues with my sinus, but my doctor did not feel it severe and prescribed diet and Avamys nasal spray. My doctor also prescribed Topzole tablets believing it could be acid reflux as I was getting a burning sensation on the upper center chest area. I do also suffer from mild trigeminal neuralgia in the cheek area. Another medical issue is neck and lower back pain related to discs. The symptoms tend to get worse at night. I sleep on my left side, and as soon as I lay down, I am unable to breathe. I can now only sleep either on my right or on my back. Unable to breath makes me anxious and results in not being able to get much sleep. Also, it is hard getting used to sleeping differently. It has been frustrating for me the last three weeks as I am unable to find a solution or the cause of this problem. Please, I need advice in identifying and treating this issue. I do have a ct scan for the sinuses, and chest scans, etc. if needed.