Yesterday, in the afternoon I decided to take a nap, however I had gotten sleep paralysis in which I couldn't move or talk. This has happened before quite a few times but not regularly and I have heard inaudible whispers and seen black, dark but seemingly harmless shadows (specifically, a shadow that kept morphing into different people, a crawling shadow and a smiley white face near my bedroom windowsill).
The difference is today, I levitated for a few seconds after having the sleep paralysis in which I did not see anything, but heard many inaudible and loud whispers around me. However I was very easily and effortlessly able to go back into my body the moment I raised, as I wasn't familiar with out of body experiences and I didn't want to take any risks. After I returned back to my body, everything was back to normal and the whispers stopped. Keep in mind, this happened in the afternoon and after I returned, I was very tired and slept normally, I had forgotten about it for the majority of that day and remembered about it just recently. I have never taken any illicit drugs, but do suffer from quite a bit of stress. It felt unusual and creepy, rather than frightening and evil, however I may have just gotten used to it.
I've read comments from people that this has happened to them or loved ones and it didn't end well for them. Is what is happening to me harmless or should I be concerned and do something about it?
Would love to hear back from anyone who has similar experiences and help would be GREATLY appreciated!