How many months did your babies have colic? We've been struggling for …

How many months did your babies have colic? We've been struggling for two weeks with this problem and gas, and poop that she can't release herself. We saw a pediatrician, they diagnosed "infant dyschezia". I'm so exhausted, I can't do anything around the house, the baby is always crying practically, we're taking care of our older son who has holidays. This makes me even more nervous, as I'm taking away childhood from him by making him a nanny.