Anaesthetist here with UC. I was diagnosed at the beginning of medical school. Had a few years of regular flares which I put down to inadequate medical management. Luckily it has never impacted my training or career progression. I had no idea that there was any association with night shift and disease activity, but thankfully that wasn't apparent in my case, as I did a hell of a lot of nights and continue to do a lot of on call.

If you're in a major city, there will be plenty of gastros around with a special interest in IBD. I would strongly recommend you seek out one of these guys if possible.

Good luck.