Getting sick?

[CuddleMunkie]

Today when I got home from work I decided to take my BP out for a few minutes to check on her and see if she was ready to eat since it's been a week since she refused her meal and two days after I moved her cage (my sister and I traded bedrooms, so naturally she moved with me). She was fine after the move and completely adored her new hideaway I put in there for her, slithering in it and curling up within minutes.

Anyway, I took her out and after a minute or so of coaxing her to unball herself (I actually laughed because she literally looked like a ball in my hand), she leapt to life and started slithering all around my arm like normal. It was then that I noticed she was drooling from the sides of her mouth. When she inhaled deeply, I could feel it rattle through her. It's like when you have a cold, and you can feel the gunk in your lungs when you breathe. (Which is why I'm thinking that she might have a respiratory infection.)

I looked at her for several minutes, and she doesn't act unusual at all, really. She yawned a couple of times, but her eyes are clear and there's no changes to her coloring or weird spots on her face or mouth that I've read could be signs of mouth rot or a parasite. But what really startled me was that she coughed twice after I put her back in her tank and fired up my computer to get online to come here. The first one really rattled her, but the second didn't look like it bothered her much at all.

She's since gone back into her hideaway, curled up for a few minutes, then come back out to slither around her tank. Her humidity is a bit low, so I'm about to add more water to her subtrate to get that back up, and putting her basking lamp back on even though she's warm to the touch. (I've been regulating her temps and humidity, as well as setting day and night times by covering and uncovering her cage on routine.) She's not yawning a lot, just every so often, about every ten to 15 minutes.

Also, she doesn't have mites because I always check for those. I did change her subtrate out last week, though because the old stuff was getting really dry really fast and smelled like grapes when I misted her tank to keep it moist. (Which was like, really super weird in my opinion.)

So, should I be looking into a vet for her, or wait a bit and give her more heat and time to get over this herself? I think the closest vet that could see her is about two hours away, and I don't really feel comfortable taking her on a long car ride like that unless it's absolutely necessary because I'm afraid it would stress her out and aggravate whatever this is.

Oh, and before it's asked, the cool side of her tank is about 83 and the warm side is about 87 and getting warmer because of the lamp, so I suppose it could be considered low?