Sinus Medication Solution

Anti inflammatory meds seem to help, but my body gets used to meds so they stop working.When air pressure drops,so do I from reality.I used to have migraines,so I know these are not migraines
Spring,fall,last 2 weeks of the year & 1st 2 weeks of the year are the hardest times for me
Right before rain is here (storms are worst!)Bad times also when I’m dizzy,nauseated,& weak.Sometimes I collapse in weakness.At times my ear canals ring,feel pressure or even hurt.
Drs just give me antihistamines,which sometimes work on allergies,but never for sinuses.The only time I ever get sinus infection is when I have this 3 days.But these headaches almost always last 4-6 hours.No comfort,no relief
Airplane take off/landing make me real dizzy,&I feel sinus pressure start.It’s gone soon after landing
As a kid, in elevators,I would squat in the corner with my head in my hands.I’m adult now,still get a bit dizzy,but not bad.I have more body mass
Any ideas?
Correction, the headaches last 4-16 hours