colic is not nice. have you tried changing her bottles to anti colic bottles? use infacol? i dont think it would be a good idea to let her cry til she falls asleep because she is in pain and needs you to wind her. william had colic and it was horrible but he got over it.

3 weeks seems awfully young to let her cry it out. She's still brand new in this world and she needs to feel safe and loved. I'm not sure that leaving her to cry in her crib is going to do anything positive at 3 weeks of age.

Have you tried Mylicon gas relief drops? She could have an upset stomach.

This will most likely pass. A lot of babies go through this.

nahh i wouldnt let her cry it out shes too young. try giving her some gripe water and rub her belly ....we've almost all been there it gets better , hang in there!

My daughter is now 3 months. have you tried the gas relief drops for infants. *Liquid Gold* and trust me they work. I use to put her in her car seat try going for a drive or put her in her stroller and walk up the block. I have also put her in her car seat and placed her ON (almost typed in but ON) the dryer or the spin cycle of the washing machine. I have also put her in her swing or bouncer or even the car seat moved her to the bathroom door and took a hot shower while she cried (hey you have to sometimes.) The noise of the water usually calmed her and the shower and being able to wash my hair calmed me so when the next fit of crying came I was able to go to her calmly. I have also just had to let her cry when it was to the point where I couldn't take it anymore I would put her down in her crib and call a friend and ask for help. Sit outside or away from her for a couple of minutes and go in and try again. Mine also liked to be wrapped up tightly. Just a couple of things I picked up. Hope it helps.