Is she teething? Sometimes that can be the culprit. I am not sure what to tell you except that chamomile tea helped me. I drank several cups of it and then nursed the baby, he calmed right down. Simethicone usually works, I am not sure why it didn't work for you. I agree that laying him down and making him ride the bicycle is a good idea. It worked for me. I also found that I can't eat beans or brocoli either. If I think of anything else I will let you know.
Hang in there.