Today would be my normal day to take double-dose Bactrim. I didn't take it. I kept a journal yesterday and data regarding food/drink intake and the heartburn. Today, I had it mildly in the morning but nothing more than that all day. It felt much better this afternoon. Just to test out my theory, I had a cup of tea in the morning and a diet pepsi mid-morning. Neither seemed to impact the chest pain.
God, it would be great if the Bactrim is the problem. I am realizing after all these years that I don't suffer medications gladly. I am very susceptible to whatever the crappiest side effects are. Makes me a little concerned about Tysabri. But there's no way to know until I try it.