Welcome to the forum, @Celiacsugh! Have you been checked for a gastric or peptic ulcer?

@Juliana82, Is the bleeding occurring when you throw up?  Or with bowel movements?  Constipation?  Is it bright red or black and tarry?  Anal fissures?  Crohn's or Colitis?  Alcohol consumption?   Diabetes, Thiamine deficiency and anemia can cause false negatives.  Most diabetics are deficient in Thiamine.  Thiamine deficiency can also occur due to high calorie malnutrition, eating lots of carbohydrates but insufficient Thiamine from dietary sources.   The Gluten-Free Diet for Celiac Disease: Critical Insights to Better Understand Clinical Outcomes https://pmc.ncbi.nlm.nih.gov/articles/PMC10537989/

Hi There! Recently diagnosed, have been gluten-free for 3 months. My main symptom at time of diagnosis was upper left dull side pain, burning, constant. After going gluten free it has improved dramatically, however I’ve noticed when I drink wine on the weekends the pain returns. Has anyone else experienced this? 

In the US you don't need a referal to see a specialist if you are self pay. PPO you can go directly to any specialist or doctor you prefer. HMO you’ll choose a primary doctor to manage all your care. Pricing of the insurance will vary, as will prescriptions coverage.  

Welcome to the forum, @lsky! In Canada I believe your healthcare system is totally socialized so I doubt if you have the option of making direct appointments with specialists. In the U.S. it is becoming more and more that way as most people here now are covered by some government managed healthcare network and almost all providers and specialists are part of those networks. Here and there you will find independent providers that take private pay only but it is the exception. Both in Canada and in the U.S. I believe there is a concerted effort to always keep the PCP in the loop.