Thanks to all who have responded.
I don't have a heart issue or a history of a heart issue. However, I appreciate the suggestions and will definitely call my surgeon tomorrow. I see him Wednesday, too!
My thought is that I might have eaten too much and that was the issue. I have been limited my intake to just 1/2 cup at a sitting. And, I have not had a fill so I didn't think I had a restriction. however, I noticed today that I feel it the most after I eat a meal (1/2 cup or less) or drink a large glass of water, etc.
Thanks again for responding! It means a lot to me to hear from the experienced folks in the crowd!
Cate