Infacol.. yay or nay?

My little girl is 9 weeks old. For the past week she has really struggled with farting/pooping. She spends the entire day straining and then keeps herself awake at night throwing her legs in the air. We've tried gripe water previously and that doesn't seem to do anything. We've also done long hot baths which often becomes a jacuzzi or she poos in them. Have tried infacol today and it seems she's thrashing her legs around more than she ever has before. She's never struggled with burping. Only the other end 🤦🏻‍♀️ What's everyone's experience with infacol? Will she eventually just do a really big fart??