Are these new behaviors concerning or am I just being paranoid?

[Bogertophis]

When you can, it would be a good idea for her eye to be seen by a qualified veterinarian with lots of snake experience. This may help: https://arav.site-ym.com/search/custom.asp?id=3661

BPs are somewhat prone to dehydration & it often shows up in their their large eyes. Dented eye caps indicates dehydration- it may have been in her past, as it sounds like she has a well-stuck eye cap (or multiple layers), from your description. In no case should you try to remove them yourself- it's a very delicate procedure, if it can still be done safely- it sounds like she's had this for a long time. I'd ask the vet (ahead of time) how many times they've treated a similar problem (successfully).

With your helping at a herp center & with friends animals, I wouldn't rule out something contagious, unfortunately- since you didn't mention changing clothes & showering before getting near your own snake- with some things, handwashing & gloves may not be enough. Diseases can be shared to other herps, even when the carrier appears perfectly healthy. Sure hope it's nothing like that though.

And obviously, my comments are not intended to be any sort of diagnosis- just helping you "brainstorm" the possibilities here, from the limited information given & not even seeing what your snake is doing.

[SpookySnakes]

Of course of course, I truly do appreciate any kind of advice or different perspectives. I'll try to look into the eye thing at some point, I just haven't because she doesn't seem to be affected by it currently. That doesn't mean it can't become a problem of course.

The handling thing happened like a couple years ago though, since my sister no longer works at that facility I haven't been there in a long while. And the last herp I handled was a couple of leopard geckos owned by a friend. Could she get something and appear normal for a while and then suddenly show signs of something contagious now?

And an update on the weird movements, seemingly out of spite and to make me look like a liar, she's stopped the weird movements and being extra active. She's back to hiding under her dish and coming out for her normal checks and water... I guess I'm just gonna have to watch her for now and see if it comes back. I'll certainly be thinking over all the suggestions and ideas everyone else had here.

[Bogertophis]

...The handling thing happened like a couple years ago though, since my sister no longer works at that facility I haven't been there in a long while. And the last herp I handled was a couple of leopard geckos owned by a friend. Could she get something and appear normal for a while and then suddenly show signs of something contagious now? ...

Sure, you bet. Some things have a long incubation time (though probably not over a year?)- that's why keepers do long quarantines in the first place. So as not to put their entire collection at risk from one newly-acquired animal.