You'll want to read this caresheet over carefully.

http://www.ball-pythons.net/modules....warticle&id=59

Just to give you an idea, we keep all our ball pythons at 80-82 degrees cool side, 90-92 degrees warm side, humidity between 50-60%. No night drops, never dipping as low as your temps.

What are you using for a heating source? What are you measuring your temps with?

Ball pythons need two hides, preferably identical - one per side - the hide should be dark, and fit the snake very tightly in a coiled position. They do not require a climbing branch as they are ground dwelling snakes that rarely climb once they mature and if they do, they tend to fall. Ball pythons do not require a bowl large enough to soak in, in fact it isn't encouraged that they soak at all. Healthy ball pythons do not normally soak. You might see soaking especially in a ball python with mites.

Since you mentioned a pet store I would encourage you to be calling them in the morning. They've obviously sold you a snake that has problems. Ticks indicate most likely an import snake, if it's mites, they shouldn't have sold you a snake with any bugs on it regardless. If it had issues with it's belly when you got it, they shouldn't have sold it in that condition. I'd be having a word with that store manager come morning.

If you wait for her to be running gobs of stuff from her mouth you'll be making her worse. If she's wheezing, open mouthed breathing, etc. and has this belly thing going on and has some sorts of bugs on her you need to make a decision to take her to a vet and see if this store will stand up about the bill you'll face. There is absolutely NO excuse for selling a snake in poor condition and giving you incorrect husbandry information that will only make her health issues worse!