when I do that, I usually force myself to drink a TON of water...for multiple reasons:
-water is good for you, and usually I just had a ton of sugar, salt or both
-water makes you full, so snacking doesn't seem so great anymore, try drinking 32 oz of water in like an hour...then you'll be pee-in'
-another reason is ill be running to the bathroom every 10 mins, and its a way to remind myself not to eat like a pig every time I am running up to the bathroom with a full bladder
*It happens to everyone! Goodluck!