Hi I have had bloods that showed I had a problem with Thyroid, had Scan and Biopsy on Nodule which was benign and they're keeping an eye on it. But then bloods showed normal. Have aching joints, brittle nails sometimes feel jet lagged and tired but not always??? I am also gluten free due to wheat intolerance which causes Migraine irritable bowel etc..... When I have the next blood test should I ask the GP to do anything in particular regarding my Thyroid?