 [ Symptoms ] i been very tried and dizzy lightheaded and gaining weight thyroglobulin antibodies says 3 h should i be concerned [ Disease ] you may have to undergo an endoscopy to biopsy your small intestine to confirm that you have celiac disease typically a blood test may be done first since it can be an indicator and is less invasive but a biopsy is better at confirming a diagnosis you may also want to attempt an elimination diet to determine any food allergies sensitivities or intolerances that you may have this type of diet starts out very basic and restrictive but you will gradually start to reintroduce certain foods back into your diet one at a time and monitor your body is response if you have an allergy or sensitivity you may notice side effects when you reintroduce different foods this is not meant to replace a proper diagnosis but it can help provide you with an association and causal relationship another option might be to keep a food journal and write down your dietary intake each day you may be able to better identify triggers and notice trends between symptoms and foods consumed by doing so it may then be worthwhile for you to discuss treatment and management options with other health professionals like another doctor or a registered dietitian i am sorry you are coping with celiac disease which is an autoimmune condition that renders the body unable to process gluten a component of wheat and causes the body to attack its own small intestine when gluten is consumed your doctor did the right thing in advising you to avoid foods that contain gluten in fact this is the only treatment for celiac disease however it sounds like you might have been offered more resources and support than you received you might want to consult a medical provider who specializes in digestive disorders to have your diagnosis confirmed and receive more specific counseling because celiac disease is not just a digestive disorder but also causes damage to your small intestine it is important you understand how to manage this disease a specialist may be able to offer you that type of thorough support webmd also offers a great digestive disorders community you might consider checking in there to find the celiac disease group and start chatting with others who share your condition wishing you well