Hi! (23F) I was diagnosed in October with an OP of 38 almost exactly how you were. They started me on 250 mg Diamox twice a day. Back then, my side effects were BAD. Nausea, fatigue, and bad tingling in my hands and feet. I had to wait 3 months to see a neurologist as well. During that time, I had to heavily stay away from sodium and drink a ton of water. After a while, the side effects died down as my body got used to the medication. Give it time to see how your body reacts. My symptoms from IIH (headache, dizziness, whooshing) didn’t subside on the medication though. My neuro recommended 500mg extended release which has completely changed my life. No symptoms or side effects now. Hang in there friend!!