How can I treat really painfull GERD. It seems to be getting worse.?

I was diagnosed with GERD several years ago. I have taken medication ever sence. It has always worked great. I have recently started eating healthier, more fruits and veggies and lean protiens, plus I am pregnant. It seems even when I take my meds I am still having problems and it seems to be more painfull in one pareticular area, not always all over like before. The medication takes care of the burning but not the painful spot. Please Help I have seen my Primary Care giver and he is thinking I am just taking in to much caffine and I have acctually quit my soda and coffee intake because of being pregnant its been three months sence I have had any caffine. I am scared I may be getting a ulcer and he's not paying attention.