For a few months I've been experiencing what I think is heartburn/acid reflux. I think it may be connected to a problem I seem to be having with my esophagus. I just had lunch with chicken and rice, not a large portion. Several times I have felt suddenly that the esophagus is full and there's a pain in the center of my chest. The food feels stuck and nothing else will go down without pain. It always happens with rice. At night, I can't sleep on my stomach anymore because of reflux. I'm worried that there's problem with the esophagus. Thank you!