Go back to your Doctor. I would also stop taking them until then. There are other ways to get your BP down. I'm not an expert, so I can't really recco anything, but talk to the person who put you on them, and explain your concerns.
Mt Snow, VT - May 5, 2012 - Completed!
Gunstock, NH - June 1, 2013 - Completed!
...i remain, he who remains to be...