My python has always been extremely active at night time. No matter if we had him out of his cage or he was still in it. but for the past week and a half he has been in one hide the entire time. and even when my girlfriend took him out he would to go directly to a dark small place and when my gf went to grab him he even hissed at her. (witch is odd because hes never hissed at her before) now i looked on other sites and stuff and i found some people with the same problem. but the answers they got were things like "hes probably about to shed" or check the teps, or the humitity, and asked if he has eaten. well my python just finished his shed about 2 weeks ago. and he just ate on friday. and the temp on the warm side is 90 and cold side is 73 with the humidity and 55%. so i was just hoping either someone could help me figure out if something is wrong with him. or if i need to change something. and even if other people are experiencing the same type of behavior. all post appriciated hope to hear from everyone. Thanks