I just adopted a corn from someone who could not, or would not care for it. It has not been sexed but I will refer to it as male. He is about 40 " long and 3 1/2" girth. He is in a 29 gal terr. on newspaper, quarantined from my collection. He obviously hasn't been handled much has he is flighty and always stiff. His temps are currently 84 on the warm and 75 on the cool side. I have only had him 2 days, only handled him upon examination when I recieved him. My concern is this: His mouth doesn't seem to close all the way. Not just in the front but all the way around. It opens even more when he flicks his tounge. I was in the room with him studing and I heard a "cough" type sound. It was him. Was repeated 3 times and then stopped. His mouth looks clear despite not closing. He also drank way more than I have ever seen a snake drink. 30-40 seconds at a time 4-5 times in a row. He had a bowel movement that was very dry and powdery. He has an appointment with the vet this week for probing and general exam, just wanted to go in with some ideas of what could be wrong. Any ideas?