Everyone seems to have their own definition of colic. My baby was colicky for 14 weeks and it was a living hell. I took a lot of suggestions on how to soothe my baby and, although the techniques seemed to work they were only temporary. Everything always went back to the crying. My baby didn't cry during a certain period of the day either; he cried literally all day long!
Some of the things I tried: he was taking breastmilk, so I stripped my diet bare of all the 'bad things' and it did nothing to help. We went for drives in the car, swaddled, put him in the swing, 'shushed', let him suck on a pacifier, played a white noise machine, you name it we did it. And like I said, each thing worked for a short period of time then right back to the screaming. Now - you might get lucky and have a technique or two work for your daughter which would be wonderful! I really hope that happens for you.
The best piece of advice that I got was that around 3 months the colic would just stop. And, for us it did around 14 weeks. It was like turning off a switch. Instantly he became the happiest baby ever.
Personally, I believe that his colic was due to the nervous system being immature and crying was his way of 'blowing off steam' and releasing frustration. Obviously it wasn't the diet - we tried everything and I mean EVERYTHING and it had no effect. He wasn't gassy, it wasn't reflux, so there was no need for us to medicate. Other people will tell you that babies just don't "cry for no reason". I would have loved to invite them over to my house to prove them wrong! That's exactly what mine did for 14 long, difficult weeks - scream and cry for no apparent reason.
You did the right thing by calling your mom. It is important to take care of yourself too. Being a new mother is hard enough even with a perfect baby, and can be exceptionally difficult and stressful if your baby is crying all the time. Calling someone to help is NOT shameful and definitely the right thing to do.
Hang in there - I can promise that it will get better. I remember thinking, "is my baby going to be this miserable, cranky mess all the time with a difficult temperament" and I got really scared because I thought I was going to have an inconsolable child for life. I can assure you, however, that your baby won't be like this forever. My son is now 2 and is an absolute delight! And just wait, colic makes the tantrum stages feel like a piece of cake!
My heart goes out to you - hang in there and call your mom for help when you need it!