HI Bhkhhh- I hate to break bad news,but sometimes the blood tests are not accurate for this. I only speak from experience- a good friend of my dads had a negative blood test but then had an actual endoscopy (she was having other issues as well) and her biopsy came back positive- she went on the celiac diet and was much better. The other thing she told me is that sometimes people can take awhile to respond to the diet. The funny thing is that she had an extensive family history of Celiac and no one, depsite her asking, tested her and as a result, she suffered for a lot longer than she needed to. So, if you have an endoscopy, please ask for the biopsy
needed to determine this. Lots of luck to you. I hope you feel better soon.