J.S.
Hi E. -
I'm not sure if he is teething, however if that is the reason for all of the fussiness I would highly recommend Humphries Teething Tablets. I think you can get them most anywhere that carries teething products (i.e. Walgreens, Target, etc). You dissolve them in a tsp. of water and then rub them on their gums. What a lifesaver it was with my daughter! It was the only thing that helped calm her when she was teething.
Good Luck!!