Hi. Thank you for your response. What I eat with the soda generally varies, and I usually don't use a straw. People have mentioned sugar as being a problem. I have cut back on sweets, but I juice at least every other day, which includes fresh fruit. I'm wondering if the natural sugar in the fruits could be causing a problem. It's been very frustrating. My doc suggested going back on a monoclonal antibody, which I don't want to do. I'm currently on medical marijuana which seems to help a bit, but not enough.