I need help

Lucia

My son is turning 12 weeks today. I have been up every 1 -2 hrs for the last week or so during the night, trying to get him comfortable. He usually sleeps in his crib in our bedroom but for at least one or two weeks he has been grunting and squirming and restless. I know it is gas but I have been doing everything, incl. a visit with his doctor and he is just not getting better. I have a co-sleeper tgat 8 use with him most nights but we are now at a point that he only sleeps in my arms, moving around. No matter how deeply he is asleep (or I think he is) the moment I put him down (crib or next to me) he wakes up grunting and squirming and just overall unhappy....I don't know how much longer I can do this...