i just purchased a Bci off craigslist last week, her original owner was a vet and didnt have space for her anymore. she is over 6 feet and around 3 years old. when i first got her i noticed a slight whistle in her breathing but i thought she was only hissing at me. yesterday i noticed she bubbles coming from her nose. the enclosure humility is correct and the temp is around 85. shes in a 4x3x2. she isn't lethargic in any way. she also sometimes takes a breath with her mouth open but it is only slightly. i am currently setting up a bin with a higher temperature and i texted the woman i got it from and she has me booked for friday to take her in to see if it is an RI. anything else i should be doing? this is also my first post on here

yes i know its my fault for not asking sooner if the snake did have any issues but she did say that she hadnt noticed anything before giving the snake to me. any tips or ideas would be helpful

i dont know if this is an RI 100%, maybe a clogged nostril? ive never had any reptiles get sick so i am worrying alot lol.