Has anyone got children who have coeliac disease who despite following a strict gluten-free and oat-free diet still are experiencing fatigue, headaches and aching pains even 2 and a half years after diagnosis. She is 10 and has been tested for vitamin B and D and K deficiencies, thyroid, iron, calcium etc as well as other auto-immune diseases like rheumatoid arthritis and lupus. She has also had MRI scan. We can't figure out what is still wrong with her. Do some children's bodies just take a long time to heal? (we have tried going dairy free in the first year and it didn't make a difference - if anything this last 12 months her pain seems to be getting more severe and some days she just can't manage school).