Gassy baby

Diamond

My son is 3weeks old and this week he has been backed up, struggling to poot and poop and has been extremely fussy. I’ve done bicycles with him, belly massages which take forever and only give him a little relief. I heard of this product called Fridababy windi the gasspasser, has anyone used it?? I’m a little skeptical but I need to figure something out for my poor baby 😩