Thanx for the help!

Right now or today, I'll check my temps, correct the humidity, and see if the problem is serious because, I have a book on Ball Pythons that shown all the symptoms of RI & my snake doesnt show any of the signs, no mucus, no foam in the mouth, its face is actually dry (normal). The only thing I know is he makes this light whistling noises. I don't know if its hissing or what, actually Lol?