Okay, here I go again...
There is no such thing as "colic".
Babies cry for a reason. Whether it be acid reflux, a milk protein-soy protein intolerance, and ear infection, whatever.
Babies dont just cry for the hell of it.
My son did things like that before I found out he had acid reflux and his esophogus was burning him from all the acid coming up. So basically he couldnt eat much at once because his throat hurt everytime he swallowed. His stomach also hurt because he is intolerant to milk and soy protein-which many babies are. If I were you I would try to do some research. Obviously your child is in some kind of discomfort.
Our ped said that 99% of "colic" was actually reflux or milk-soy protein intolerance (or allergy), which my son has both.