What else can they do for High BP?

Doctor increased my blood pressure meds again. Now I'm taking 3 x a day. This has been going on for a week and now I feel dizzy and weak alot of the time. My skin is drying out and I pee alot, but it hasn't moved my BP down yet. it's still up around 140/75. I go to doctor again on monday but I'm afraid of what they may do next. has anyone else been struggling with BP being high and what has doctor done to help you? I'm at 34 weeks as of sunday..