Gassy, acidic, diary, caffeine...
Record a diet diary along with babies reactions/symptoms for at least a week. With that info you can begin an elimination diet; meaning completely stop eating the trigger foods, till you see improvement. What I was told is that babies can react to a food through nursing, in general within 2-12 hours and it can stay in their systems for 2 weeks or more.
Do not cradle hold but prop baby up during feedings. Then hold them in an upright position or prop them on a boppy, carseat or swing after.
Gripe water or Mylicon or enzymes
Homeopathic colic tabs
with acid reflux
"Casein hydrolysate formula... is made of cow's milk that has been treated... But there isn't enough research to say whether replacing standard cow's milk formula with casein hydrolysate formula will help your baby's colic.  "
You are the best mom for Your baby! In other words YOU have the best mom instincts for your baby! If your baby appears to still be in pain, crying etc then the formula you are currently using may be the culprit no matter what the bottle/can or ads says!
I recommend trying different options such as homemade baby formula or donor milk. Here is an other recipe: Goat's Milk baby formula from Dr Sears
I also had a fast/forceful letdown which compounded the reflux. Here are some tips and positions combined with tips mentioned above, stopped our daughters sputtering & chocking while nursing.