I'm not quite sure where to start or how to explain this, but I wonder if it's a mental health problem although I've never heard about anything like this from anyone else. Basically I go through periods of believing things totally and strongly, and then just stop. For example for several years I was a huge believer in David Icke's work, totally believed in the reptilians and everything. Then I totally believed in Christianity, then other stuff, then recently a few months ago I just suddenly totally and fundamentally believed in Christianity again, to the point of throwing away all of my CDs and DVDs because they were satanic (things like heavy metal and dance music and just normal everyday films) and throwing away all of my heavy metal t shirts, and reading the bible every night before bed and constantly worrying that I'd do something wrong (join the wrong Christian denomination, and not being sure whether I needed to do works with faith) and would burn in hell for all eternity because of it, and I no longer believed in evolution but thought the world was created in 6 days, believed everything that wasn't christian was satanic, and all kinds of other stuff. Then, a day or two ago, I just suddenly didn't believe in Christianity any more and regret throwing all my stuff away and feel silly for not believing in evolution, etc.
This keeps happening. I suddenly and strongly totally believe something, to the point of starting to change my life over it, then just as suddenly either stop believing in it or suddenly switch to a totally new belief. Like I went through a several year phase of believing that the universe was one interconnected consciousness that we are all a part of and I felt and believed it so totally, then when I sudden;y believed in Christianity totally and thought that my previous feelings of oneness with the universe where a deception from satan to lead me astray. This isn't even the first time I've thrown all my stuff away because of a belief that started and ended suddenly.
I've also had several what I thought of as "mystical revelations" where I'd spend hours or sometimes even days feeling so intensely at one with the universe that I just lie on my bed with feelings of bliss coursing through me. But then months or years later I've thought, "Well, maybe there was some physical/mental/chemical thing going on inside me that caused that." This is affecting my life because just when I think I'm settled in one belief and my life is focused on that, my belief suddenly changes to something totally different and I regret whatever it is I've been doing. Like when I was feeling pantheistic I was trying so hard to be vegan, and then when I was Christian I thought, no veganism is the "doctrine of demons" so I never know what to do.Does anyone know what I'm talking about or experience anything like this?