I'm so sorry you're experiencing the colic thing with your baby boy
My son (who is now 23) had it and OMG I was a wreck! I didn't breastfeed, though. The only thing that seemed to help him was to strap him into his little carseat and go for a long drive. Settled him right down, but usually he'd wake back up again when I tried to carry him into the house and remove him from the seat to put him in his crib. The only thing I can tell you is that it doesn't last forever. Hang in there Mommy
If it gets really bad to where you are super frustrated and/or crying, put him in his crib and walk away for a few minutes. He can feel what you are feeling and it can make it go on longer if you're holding him and upset, you know? The Mylanta drops didn't help us either.
Thinking of you!!!!