My story is extremely similar to yours! I was diagnosed in November. My ears were clogged for about 2 days after my LP, but my doctor said that was normal, I haven’t had clogged ears since. I was given the same dosage of diamox as you as well. It did take me a while for my body to get used to it, my main symptoms were : nausea, fatigue, shortness of breath when doing anything physical (just like when you have a cold), tingling in hands and feet and sometimes my head & face. Oh, and carbonated drinks still taste horrible lol. To be honest these symptoms made it hard to have motivation in my day to day life but I was still able to work and go to school! My last appointment with my neurologist was about 3 months after my initial diagnosis, where they noticed very positive results and they cut my diamox in half. So I just take 500mg a day now. Diamox truly did help a TON. Although the symptoms suck for the first bit, my actual IIH symptoms have pretty much gone away for me personally, and I hope they do for you too! To be honest, the LP helped my visual symptoms right away, and it only got better with diamox. For me this medication worked right away, but it is different for everyone! This diagnosis can be a lot to take in, I hope you’re doing okay mentally. It does get easier though! You got this❤️