OMG HELP!!!! Twins with colic?

I'm at my wits end. My 6 week old twin boys scream all the time, ... expecially in the night hours. Nothing I do seems to comfort them. They act as if they are starving to death. ... craming their fists into their mouths. .... when I try to feed them, ... they wont eat and instead spit their milk everywhere and continue screaming. I have no help and am literally surviving on caffeine pills, .. which I know isn't good for me. Their doctor suggested that I give them chamomile tea before their bottles, ... it's provided little to no help. Can anyone tell me how to comfort my little boys. I feel completly helpless and I think I will go cry with them now.