The rising of body temperature, is a normal side-affect, in meditation .
Your reaching a higher state-of-mind, after all.
As for " hearing long distances ", I'm thinking of two reasons .
1. You have the ability, or capable of, astral projection .
2. It could have been, something, shamanistic . Such as your animal spirit contacting you .
I'm not an expert, on either subject, so I'd suggest looking through the articles on this site and see if someone here can help you .
All in all, you're going to be fine .