Not sure what's going on, help?

So i've posted about my BP not eating, probably due to his shedding and going through a droppings moment.

So lately this last week, he has been hissing alot, and he did sometimes but his are very strong hiss's, and he seems very scarred, like i'll go to get him, and he goes into a very strong ball. Now he hasn't done this since he was a baby and he was always very comfortable, i lift up his hide, he just chills out, always good, but this last week he's just been acting up, and it has me worried.

His temps are accurate, the humidity is accurate, everything is the same as it has been he's just been acting kind of strange.

Any ideas would could possibly be going on?

I will say, when i tried feeding him last, he wasn't interested and i sat near ( like always ) because i feed live, and he showed no interest in it at all, just kept hiding when the prey got near, and i left for maybe 20 seconds to go and shut a door so my cats couldn't get in, and i walked back in and he was kind of spread out and was all dirty like maybe he attempted to get it and missed or something. So immediatly(sp?) i thought oh no, the rat may have snagged him, searched the snaked very well and saw nothing from top to bottom belly, etc. So i'm not entirely sure if that's what happened and has got him acting weird, but i guess that was my first mistake because i know you never leave them unattended, but with him not even caring i was just like i'll shut the door then get the rat out and try again.

Could this may of happened even if i can't see any damage, or wounds?

Would do you all suggest i do? I'm suppose to try and feed him today but i don't know if i'm going to with the way he's been acting.

maybe hen has a internal parisite that is affecting him. you might wanna get him to a vet to be sure? if not i really dunno seems strange though.