R.M.
I absolutely agree with the other two Mama's that have responded to you so far..there have been a LOT of changes in this little fella's life in the past few months. He has gone from having a SAHM and a Daddy in his life to something so totally different that there really isn't much for him to hang onto right now. His Daddy isn't there, his Mommy went back to work, he has moved to a different place, he spent several months with his Grandma, whom, no matter how much she loves and adores him, is NOT you!!! I would be surprised if he WASN"T reacting to this in some way or another.
That being said, his fits seems to be really, REALLY violent, and I would want to rule out any physical or psychological cause to them if I were you. Have you found a new pediatrician that you feel like you trust and have easy access to? I wish I had some wisdom to offer about how to deal with this fits of his, you must remain calm ( I know I know, easier said than done) and don't over react. I would try to treat them like any other tantrums, don't reward him but giving in to whatever it is he wants.
I would also try to work on his verbal skills, dont "guess" when he wants something and dont let him just "point". Try to teach him ( in calm moments) how to say the things that are central to his life. It would be very frustrating to him to not be able to communicate what he wants to you. This makes me happier than ever that my daughter has been teaching my 15 month old grandson "sign language" since he was an infant!!! I dont know if you would want to look into something like that or not. My grandson can tell us if he wants "drink" "more" "water", "all done" he signs for so many things....Mama, Papa, Grandpa, Grandpa, Hat, Puppy, Kitty, Elephant, fish, all sorts of things. Not only is it just as cute a button but he can actually communicate with us and tell us exactly what he wants!!!!
I wonder if it would help your son feel like he is in touch with his Daddy if you find a couple of his favorite books and have your husband read the books to him on tape, that way he can hear his Daddy's voice, as you turn the pages with him!!!
I am interested in the fact that you said that your husband has been transferred to Ft. Hood, our son is stationed there but is right now serving his 3rd tour in Iraq. Is your husband in the Army?? How long will he be at Ft. Hood? Please tell him that I said thank you for his service. And thank YOU for your service too...I have been an Army wife for 40 years now and I can tell you it is a wonderful life, but it has it's drawbacks, like these times when you have to be separated because of the military requirements.
You hang in there...and good luck to you and your little fella!!
R. Ann