Hi, my DS10 has had a test for coeliacs today, we saw the Dr as while he's always suffered with occasional diarrhoea after eating and occasional excessive wind, it's become much worse recently. He does, and always has, eaten a lot of wheat (shreddies and toast for breakfast every day and often toast before bed). Can you go from mild symptoms to worse without a change in diet? He's very tall for his age (5'4'') and always been slim but not underweight. I realise we need to wait for results but I've looked at some websites and can't work out whether it's possible to suddenly get worse. He also been very tired recently. Any insight appreciated!