Approximately 3 weeks ago I started trying melatonin to manage my sleep. I was taking between 8-12 mg per night and was sleeping well, but I've also noticed an increase in gas/ acid reflux during that time. My diet hasn't changed in those 3 weeks, so I am wondering if Melatonin could be the cause? I've read that upset stomach is common, but I'm not sure they're the same problem. Any thoughts or experiences would be really helpful. I've stopped taking as of tonight to see whether this problem goes away.