Tummy problems and gas in baby almost 5 months old? PLEASE HELP!?

gripe water. Its AMAZING! put the directed amount in the bottles with his milk and it works in mins. U can get it at ur local drugstore, like wal greens :) also, make sure u burp him reaaalllyyy good. My daughter is 5 months and had the exact same problem. But with gripe water and gas drops, shes like a different baby. They might make it a little hard to go poop, so talk to ur dr and see what he/she tells u to do about that, mine told me to add kkayro syrup to her bottle. Gripe water is usually 15 dollars a bottle, but its worth it, it works MIRACLES! :) hope i helped. Good luck!