How is your humidity at 95%? In NC, in the winter?
Either you have a broken hyrometer, or you need to get your snake out of there and into an enclosure with appropriate humidity (50-60%) ASAP. I can't even get humidity to 95% in my tropical frog tanks with saturated bedding, covered tops, and a mister!
If the humidity is even close to that though, I think it's entirely possible that you're smelling mold or some sort of bacterial buildup.
Are you using one of those stick-on thermometers from Petsmart/Petco? Because those tend to get water inside them and then constantly read WAY off.