Ha actually a topic with multiple layers:
- meeting entities, aliens, real or not, (maybe depending on your defention of real?). How to react during trip, ignore, or focuss? Can, should you do anything with it when coming back to "normal"?
- feeling of invested by worms, insects, something psychelogical, with a one or more specific meaning/interpretations.
- Feeling sick, can you feel that something wrong is in your body or the trip reveals it to you.
- Personally, I never have seen or met any entities (at least not undeniable clear, or I don't actively remember, and yes I smoked enough "high enough" doses). Does it depends on the person, gentically, personal beliefs, backround, do you or are you good in visualizing when learning, do you have a rich "fantasy". What are the set and setting?
- I did experience strange phenomena, especially on mushrooms, a emotional feeling I was in my mothers womb, maybe hearing by parents argue/talk(that's one problem it goes fast or it won't fully grasp it and clearly remember when coming back). Other things: looking at myself from above, feeling a deasesed family member, my grandmother, was with me, feeling that a familymember who I knew was terminally actually had died or came by. Thinking/saying the same thing with another person with me?
My personal feelings: like being in my mothers womb, it can be a deep unconsious memory, you normally don't have access too, maybe it was unconsious trauma being processed that my parents divorced, maybe it's like synthesia(especially when seeing myself from above, I don't believe I left my body, and it isnt scientifically possible to me, or is it? Of course our senses are just limited and our brain filters and block things, so maybe we use parts of the brain, or senses we normally not use or forget how to use), like seeing music, tasting color(. You mix memories, with actual moment, or fanatasy with real feeling, it goes so fast and becomes vague. Did I really was thinking the same thing, or I am believing that I was thinking because he just said it? Or is there a (shared) trigger, movie, place where you went earlier or looks similar? I never watch movies, I always start inside with music and after the peak/coming down I like to be in nature (in private rather not meeting/seeing strangers, at least as less as possible, especially not engaging, with other people other then with who I am tripping).
What is the truth? Will we ever conclusive know? I am a down to earth man, a scientist and I keep I rather down to earth. Deep subconsious memories are logically to me and can be very real, maybe I hallucinated it? Sometimes I am convinced it was a real memory, sometimes I later think I am mixing memories, feelings and actual phenoma together.
I am a down to earth man, I don't believe in God, or I do, but not in the way like in Church, more like power/energy, like in buddhist/eartern religion way, actually. Tripping is for me a spirtual, mystical religious, experience. Although I am not really busy with it in my daily life I am more of a atheist (maybe I should, if you really wanted to become and stay enlightend?, meeting God, feeling happy, free from bad, stress unhappy feelings"the psychedelic experience", from Leary, Metzner and Alpert. Although maybe wrong interprations, I don't care, find it from a practical point very usefull and the best way to explain, and give direction. is always my tripping guide(always read, parts of it before a long, high dosed trip, even if I have read it a multiple times and basically can recall every sentence from memory, it puts me in the right mental state, toghether with music, and a private place with no unexpected guests/intruders).
It would be ignorant to think that what we see, know or can be proven is all there is. But I am not the person to constantly ask these questions where a definate truth or answer is not possible, I think I rather stay ignorant, to much thinking or trying to explain. For me: just as in the manual says, good during the trip, I am an oberver, just surrender, to what it offers and show, the rest can be memories I have to process subconsiously, hallucinations good or bad shouldn't give too much attention, like the insects, that's some kind of fear hallucination, don't try to fight or control or you can spind in a bad trip. Go downstream, don't think, explain, surrender (easier said then done) and the experience will go to a positive mindsetstame. Same often with sickness, actually I experienced the opposite, feeling sick, pain, while I actually litterly observing it manifasting as an emotional, and when I let it out mentally the physical sickness was gone. That doen't mean that you can maybe feel if there i something in your body that is wrong and shouldn't be there, probably if you true, you maybe feel or felt before, maybe 100% subconsious. And If true the thinking and explaining comes after trip or when almost down but again gving to much attention at the moment is useless, and will escalate into a bad trip. You shouldn't try to separate what's real and what's not.
And after the trip, I feel cleansed from bad feelings and emotions, and don't chase the "truth", like some others, I think it can be dangerous and become detached from everday reality and "normal"people, unless you intent to become and stay like a prophet or enlightend person, which people are detached from the "normal" people. I rather go back to simple hurdle, keeping the experience private to myself. In the beginning I tried to answer these questions, but they put me of balance. We all know the feeling to want shout it out and tell everyone, they should experience it and you met god or anything but it's useless to try to explain, you just wacky, crazed, hallucinating out of mind on drugs to them ;-)