Please help, I died then came back. But weirdly...

I died, then came back... All while maintaining my presence here. I felt the soul and am now confident I know what it is, and how it is separate from our physical forms. I felt a loud bang and pop inside of my head, followed by rushing water feeling. I then lost balance and felt as if my brain was on fire and I could feel all the liquid inside boiling. I could hear it and feel it. I fell to the ground and could feel something caught inside of my chest directly feeling above my heart. It then released like a clog letting go and i felt my heart stop. But I was awake the entire time, I felt myself step outside from within and go somewhere. I then seemed to "blink," out of the area and was in a chair of some sort, surrounded by three, I guess entities? Things happened, things I cannot explain. They showed me a lot, the beginning, the end, how it is all the same. I learned things. Now, I can do things and see things that myself and others cannot understand or explain. When I came back, my heart was still stopped, my girlfriend checked my pulse and nothing, my skin was cold. It started again hours later and everything is different. Colors, sensations, all things are different. Injuries from old have been healing, and I have these memories from different times and places. I remember being different people from different times and ages. Sometimes I get dizzy and my mind goes to somewhere new and I see things. I've had temperatures that have stopped recording at 108 because my thermometer doesn't go any higher, and has gone as low as 94 because it doesn't read any lower. I've been to Doctors and specialists and the like and they are dismissive, one E.R. doctor jokingly suggested I have powers or are something all together different or just abducted by aliens which I don't believe. There is so much more, but too much to put into this and hard to find the words. Please help.