I think if he were in any way injured that would have come out by now one way or the other.
He seemed confused by something the Barn D was doing. Disguised coverage, stunts or
Barn's pass rush was relentless and our OL was pitiful. Play design and play calling was also pitiful. Jalen needed to make quick decisions which he is not good at doing, and he doesn't see the whole field --(never has, never will in my opinion.) So he didn't see open rec's that he could have thrown to. By the time he figured out what he needed to do, it was too late.
Full disclosure: I am no fan of Jalen. Don't believe we will win a NC with him as our QB.