Hi @gharm, I was diagnosed with Gastroparesis about a year ago. The test that confirmed this was a gastric emptying test. My symptoms were major weight loss at first (from a size 12 to a 2) in about 2 1/2 months. I also could not eat many foods without experiencing some adverse reaction such as constipation, nausea, dizziness, etc. I lived in about 3 foods for over a year of which were bone broth, organic turkey and yams. I’m also a POTS patient so it was difficult healthwise. My histamine levels rise rather quickly with almost everything so I make a lot of items myself (cleansers, cosmetics, etc) and I have to watch my foods carefully. I would suggest you ask for a gastric emptying test. In my case applesauce took more than 5 hours to move. I now have SIBO and am being tested for MALS. My physician is trying to see which began first. I hope they are able to get to the bottom of it sooner for you.