All Day Colic?

I went to the doctor this morning for Colby because he's has a cold for over a week now and yesterday i saw signs that there might be an ear infection. As bad as it sounds, i was hoping there was something wrong with him so we could get some antibiotics and be on our way and in about a week or so I would have a baby that slept again. Turns out there is NOTHING wrong with him, just a little cold. Doc says he might be a little colic. Excuse me, a LITTLE colic? Every time he's tired he cries and cries and doesn't want to go to sleep. and this is ALL day for EVERY nap. I thought colic was more of an evening thing that lasted for a few hours, but all day? only when he's tired? Basically, i think colic stands for - "sorry you're baby is a pain in the butt, nothing i can do so good luck" Now don't get me wrong, i absolutely love Colby to death and just one little smile from him makes my day, but that mood changes just as fast as his does when he goes from smiling to screaming in a second. I'm stressing all day wondering if he's going to go down easy for his naps, or if i'm gonna end up rocking him to sleep for an hour. I've tried rocking him and putting him in his crib asleep - and he wakes up 5 minutes later crying, i've tried putting him in his crib when he's almost passed out - and he wakes up crying, i've tried just letting him cry it out - and he cries for over an hour and a half and starts spitting up, i've tried just rocking him and holding him (what kind of a person wants to hold their baby for hours and hours and get nothing done?) well he finally sleep after an hour or so of crying, and then wakes up after only a half hour nap, if i get lucky enough that he takes his pacifier - i have to sit there and hold it in his mouth. I'm all out of ideas, i'm going crazy! the only upside to this is that if it is colic...that should dwindle in the 3rd month right? Good thing he's cute right? :)