Hi everyone, I'm new on here, I'm just wondering how accurate the test for coeliac is? After years of suffering bloating, constipation, diarrhoea and feeling generally unwell the doctor did some bloods and I have deficiencies in B12 (had the loading dose) Folate, iron and extremely low vitamin D3. All now being addressed by my GP. Had Thyroid and Coeliac tested, came back as 'no further action' for Thyroid, Coeliac as negative. GP has decided to send the gastro doc, could it still be Coeliac? Or is the blood test 100% reliable? Thanks for reading, any replies welcome!