Baby wakes up every night at the same time with gas or BM

Hannah

My LO is almost 11 weeks old and has been sleeping through the night for over a week. The past four days though, he’s been waking up grunting, kicking is legs and moaning and grunting in pain. I’m almost positive it’s gas. Does anyone else experience this? Any idea on how to stop it? Oh, he’s breastfed, too.