Are these symptoms of coeliac disease?
It could be, or it could be any number of other disorders or diseases or something else entirely. Congrats on going to the doctor; that’s the first step. Now you’ll have a partner in diagnosis. I had a lot of your symptoms (but without the headaches) and after being tested for Celiac Disease and too many other things, it turns out I have an Inflammatory Bowel Disease, probably Ulcerative Colitis. The Celiac Disease Foundation gives a list of common symptoms (http://www.celiac.org/cd-symptoms.php), but notes that symptoms vary for each person. The blood test and any follow-up tests are important for an actual diagnosis and so you don’t waste your time and money going gluten free if it won’t actually help the underlying reasons for your problems. If your Celiac test comes back negative make sure you have any other tests that a good gastroenterologist recommends for you to see what is causing your symptoms. If you get a dismissive attitude, keep going and find a doctor who will listen. I