I have frontal sinus pain, blurred vision, post nasal drip, sometimes running nose/ blocked nose but mostly block mild sleep apnea, nerve pain from head to shoulder, tonsil history, ear pain how to fix all this permanentely.

Over the last 20 years I have been to many ENT doctors they just give cetrizine and steroid spray which are useless. I had a CT scan but nothing reflected. But I can see it’s impacting my life and it’s degrading my performance at work and sometimes due blocked nose or sinus I’m losing focus and becoming speechless in meetings. Please share your advices