HI there! I can’t tell you if you have high pressure, but it certainly could be! One important point is that an allergy to sulpha antibiotics does NOT crossover to Diamox — so a trial may be possible in your case. Just be sure to keep your CO2 at or above 22 when taking it, OK? Topamax has a bit of a similar ingredient in it, which may help, but the additional ingredients may not be necessary for you and it adds to the cost and side effects. Please keep us posted! 🙂