I'm Having A Stomach Problem. In The Summer, I Had

I'm having a stomach problem. In the summer, I had a real gassy stomach and diarrhea every morning. I went to a gasro doctor and we determined it was because of the tumeric that I had just stared taking. When I stopped taking it, the gas and diarrhea stopped. Now, it's back for the past 4 days. I had started taking Zyrtec about a week ago. Could that be the problem?