J.L.
J.,
My son (who will be 8 weeks tomorrow) had a similar problem. Even though I did not breastfeed, I had to change his formula to the Enfamil Gentlease Lipil. This is for fussy/gassy babies. I did have to give him Mylecon drops for a while to ease up the gas through the transition. He has been doing great on it for the past 3 weeks.
Hope this helps!