Did you or do you have a baby with colic?

I am really starting to think my 11 week old has colic. She has good days, but most of her days are not good. If she is not sleeping or nursing she is mad at the world. She has never cried for 3 hours straight though. Itis more like an hour staright with lots of rocking and walking and bouncing and anything really that will help. There seems to be no pattern. The odd thing is she sleeps really well at night going 8-10 hours *some* nights. What have you done to help your child? When did it stop? she is almost 3 months and I dont fell like it is going to stop anytime soon:( Did it just go away one day. just looking for advice and light at the end of the tunnel.