At no point have I found any difference in how I feel after working out pre or post diagnosis. The problem is the more you read on what can affect the gut integrity the more you think moderation is imperative. I've just been reading about 'Leaky Gut Syndrome' and how being Celiac fits within that context. It would appear that if you are doing absolutely everything to maximise gut healing only a small amount of quite easy exercise is best, and activities that don't jarr the body are better i.e. running ain't good, cycling better. I suppose it is up to each individual to assess the best course of action FOR THEM. Personally, I think my plan will be to continue exercising but only do around 50% of my normal load, limit any particularly high intensity riding, and re-assess in a few months - particularly when I get a new blood test.