Bloating

I’ve noticed these last couple of weeks, my abdomen gets swollen/bloated. No change in diet, no pain or nausea, not trapped wind. During my relapse two weeks ago, I had an episode of irregular/racing heart rate. Never had this before. Cardiologist reckoned it was a reaction to the iv steroids I’d had the day before, (even though I’d had them before and no side effects). I was told I had Atrial Fibrillation.

I don’t think this swelling/bloating. is anything to do with the meds I’ve been put on for the A-Fib. Yesterday I looked like I was 6 months pregnant, today I’m back to normal. Any ideas folks?