P.,
I hear you! We are in the same boat with our 5 week old.
I agree with the other posts and just bought the probiotics and mylicon for our son today too. We already are using Gripe Water too.
Our pediatrician today recommended keeping him sitting up esp. after every feeding - she said he may have reflux too - that every baby has it to some degree. So a bouncy seat, car seat or sling/carrier. Also, burp him more frequently during feedings, don't just let him chug along.
The formula may be adding to it too. Have to tried any of the other varieties? You can go online to register with the different formula companies, and they'll send you free samples in the mail. It's a nice, cheap way to try something new. Or you can e-mail me, we have some we don't need - maybe you can use them?
Good luck and e-mail me anytime. It's nice to know we're not the only ones going crazy!
Best of luck!
Sara