Formula Babies.. HELP!!!

Ke

hello ladies.. my son is about to be 6 weeks old.. and we have yet to find a formula that is perfect for him and im truly beging for help at this point... we started with regular similac in the hospital... the day he came out he had 15 poop diapers in 24 hrs.... the doctor put him on Soy similac.. the pink one... that he could not poop on and we were doing suppositories every 2 days... then we troed Enfamil gentlelease the purple can and he was projectile vomiting with that... nooowwwww we are on the similac sensitive the orange can and its great but! he has major gas problems and he is so fussy with the gas... i have tried gas drops and gripe water but nothing works!! i need some serious help please ladies!!!!

side note with the orange similac we are now on.. he poops once a day but after every bottle he pushes and pushes but cant poop but i can hear his tummy rumble with gas and he will scream and cry when he does get some gas out.