First, want to thank your husband for his service, and you for your sacrifice. And I mean that sincerely.
Changes, especially really big changes like your son is experiencing right now, throw these kids way out of whack and it can take a very long time for them to adjust to the new "normal". You might go through something similar when your husband returns.
The others are right when they say your son is in crisis mode. I'm glad that them psychiatrist prescribed something to help him, but why only for two weeks? Is it just to get him over the hump? If your mom comes to stay for a few days how will he react when she leaves?
I have a son who says the most awful things to me when he's raging. After he's calm he tells me that he didn't mean them, but my concern is what happens if he chooses to act on those words in the middle of his meltdown? If your son gets physical and threatens you, you must protect yourself, and if that includes calling the police, do it! It's not an easy thing to do, but you have to be safe.
