What are common side effects acetazolamide?

I first took diamoxx in 2019. It was after an LP due to a severe vision disturbance in one eye. With the LP and then diamoxx-I was ok. I don’t recall many side effects from it. Fast forward to now 2026- I am back on diamoxx due to increased pressure and whooshing sound in ear. I am on 250mg 2x a day - dr recommended 12 weeks on this and to see him follow up. Only problem is- I don’t seem to be tolerating the medication to well this time around….confused.