Help Partial hanging, I found my problem but not the solution

[lostangel]

Hi so I make my vision turn black but then all of a sudden it goes back to normal. I don't ease the pressure or anything I don't know what to do or how I can make this work. I think SN looks promising as I drink it and my body does the work for me. If anybody has found out a way around this I and many others are having the same problem would appreciate the help. Thanks