pseudotumor cerebri
"I had been diagnosed with pseudotumor cerebri when I was 10 years old. That was 16 years ago and have been taking DIAMOX on an off for that long.  I get very bothersome tingling that doesn't go away, often waking at night with extremely painful tingling in my feet that causes me to have to get up. I get crippling headaches, that hurts when I even breathe, and the last time I was on the medication, the headaches got worse while I was taking it. I am currently back on the medicine and have to go to the bathroom every 10 minutes. I take 1000 mg a day and can no longer drink pop. Anyway, I have good and bad experience with the Diamox but the benefits to my eyes well outway  the inconvenience."