Indersonu, thanks for your response but I know very well what gastroparesis is. I was tested for that because I do have nausea, lack of appetite, feeling of fullness, constipation, etc. etc. However, you can have all of that and not have gastroparesis. I already have a motilitiy problem in the colon. Now they are testing me for esophageal motility problems due to the lump in my throat and constant belching, etc. Motility problems are not just in the stomach.
And because I tested positive for a bacterial overgrowth in the colon, that is also causing my bloating, nausea, etc.