Well I definitely think that it’s possible for him to have any given mental condition considering the things he’s been through in his life. I mean, since childhood, Ben’s life has literally been just traumatizing event after traumatizing event. And I know that because Ben 10 is a fictional series as well as intended for a younger audience, this is often overlooked.
But just to reiterate, here is a collection of these types of instances in chronological order.
OH AND LET’S NOT FORGET THIS
And that’s not even counting every time this boy (even if he was in alien form) has been thrown around excessively and also through brick walls and into pavement. It’s…a lot. Especially for a ten year old.
But even so, here is his outlook on all of this:
“I’ve come too far. I’ve lost too much to be stopped now.” – Ben, Secret of the Omnitrix
It would not all be surprising to me if Ben had something like PTSD or any other condition in response to the events that make up his everyday life.
Which obviously continue into his teenage years, where “normal” teens would be learning, growing, developing, etc.
(Even just this scene in and of itself shows how much of himself Ben puts into his work – enough to literally PASS OUT.)
I mean he led a war at the age of fifteen. Even if he is armed with a powerful device…that’s insane.
On top of that (regardless of whether he was or not) he never once showed fear.
The entirety of Ultimate Alien was a series of traumatizing events, and then the changes that were randomly made to his life in Omniverse…whether he was hiding his true emotions or just coped in private, he adjusted to it all and handled everything extremely well.
So yes, I can see that being quite possible.
xcatxgirlx 