What is wrong with me... This is the first time this has happend .?

Lastnight i was laying in my bed looking at the ceiling falling a sleep and the thoughts in my mind were moving at like 100 mph. jumping from topic to topic in my head some reality and some not reality and all of the sudden i dont know what happend but i could still see my ceiling yet my vision was a little blurred and i can see a shadowy figure but couldnt make out what it was. all i could hear was Evil laughter and tribal music.. i thought i had died or was dying and what i was hearing was Evil spirits. it was beyond scary. the laughter was so sinister i cant even explain it . and it kept getting louder. then eventually i accepted it and then i was able to move my body and was afriad to sleep. i was in a state of shock looking at my celing because i just didnt know what was happening. i am 24 years old and never had a episode like that..