my $.02 on this- just because you're not diagnosed and having "just anxiety and agression", doesn't mean youre ok and might be quite opposite- it's probably for a reasons, that your conscious mind protects you from, something you dont know and have forgotten, and no simple evaluation will find this out but when you yourself "stirr up" your unconcious mind, all this started to "leak" into conscious mind and it took you by surprise as you thought of yourself as "highly experienced".

to me the cabin episode sounds like a LSD trip gone bad and no proper, experienced sitter resulting in a traumatic experience.