L.-
I am so sorry Caleb is going through this and sorry for you and your husband, too. My son had terrible gas for the first several months and here's what I did:
*We had him on Isomil Similac and that made the biggest difference. We tried many different formulas before we landed on that one. Give it a week to see.
*We put simethacone in every bottle (you can even see when you shake the bottle how the simethacone gets rid of the bubbles in the formula). If you ask for it at the Costco pharmacy counter, you can get it for about $3 a bottle compared to Mylicon or Little Tummies that are about $9 a bottle.
*We not only burped him, but also bounced him on our knee (kind of like "ride em horsie") which exponentially reduced the gas
*We use Dr. Brown's Bottles and Avent bottles.
*We did the bicycle with him (laying him on his back and moving his legs like a bicycle, extending his knees all the way to his chest)
*We tried the Gripe Water, but it did not help us, but I'm glad to hear it helped others!
These things worked for us, but of course every baby is different. It's so hard to see your little one uncomfortable, so I hope one or all of these things works for you.
Best of luck and happy holidays!
L.