I have a very sharp pain located in the lower part of my stomach right near my reproductive system. The last time I received these pains, I went to the doctor and he told me that I drink to many sodas. He gave me some prescription pills and they made the pain go away in less than an hour. This was about a year ago, and now I have the same pains again. The doctor is no longer in the same location, and I want to go to the store and get some otc medication. What is the best thing for me to take in order to alleviate the constant pain that I am having?