i agree that you should find one and give it time, unless it is aparent that it is making your baby miserable. i was on a bunch of meds too and i had to switch to formula. interestingly enough i went to a non milk base as my son seemed to have problems with my breast milk if i drank milk. when i stopped the dairy he got way better. i put him on infamil pro sobe lipil. he is doing great. he got a little constipated, but that was resolved in about a week.
as far as your baby crying, it doesnt sound like colic to me at this point, maybe gas which you can get some anti-gas drops for. try distracting your baby by going to a new room in the house, walk outside or sometimes i even open the freezer and the cool air makes them think about something else.