Okay, so my 3 week old is having some tummy troubles. She was started in Similac advanced and became constipated. we had to do suppositories and qtips w/ vaseline, prune juice, karo syrup...feels like everything. we finally ended up switching to Enfamil reguline and she goes to the bathroom(not regularly) but when she does she screams in pain and it is pale green and thick and sticky like clay or playdough....any suggestions on what's going on or something that would help? any advice is greatly appreciated.