Cities in the Astral

Wrote these in a thread so may as well paste here. Old dreams: I have had a bunch. I experience what seems to me to be actual travel to other realities. Figure this means, I believe I sometimes astral travel and run into DCs who I believe are real conscious entities. I mention this because my belief makes the events more frightening. In one I was held in place as if I was stuck to a wall with spider webs. Someone I felt was more than a DC started examining me closely. I tried to see past the visuals my mind provided to understand what the thing was. I kind of pierced some veil of illusion and the being looked right into my face and was clearly very alien and sci-fi looking. I struggled in fear and felt I had no choice but to wake my body as an escape.
In another I was trying to navigate (decades ago when all this was new) and discovered the medium in which stable areas/realm were connected was visualized by me as water. I assumed treating it like water was a place to start. I had been in a set of caves and had just had my first experience of a long calm conversation with things that visually came across human, but could not grasp the meaning of what had been discussed. They had shown me the liquid in a kind of tube/pool. I dove in and planned on swimming, but was swept under and away. Lots of swirling helplessness until I surfaced in kind of a lake. It was in a giant cavern and I saw buildings on the shore. I left the liquid near the buildings. They were not normal structures but similar in a sense. Suddenly some sort of alarm and commotion starts. It becomes obvious I am the cause as small creepy aliens sort of like Star Wars Jahwas pour out of the buildings and surround me. They are hostile and I struggle to get away. I decide this sucks and attempt to change the scene through dream control but nothing I do mentally effects anything. I feel a intense presence coming through some building as if the thing radiated energy. I am effectively captured now. Around a corner comes something many times bigger than me, perhaps the size of a school bus. It was visualized by me as perhaps a robot monster. It has me now and I decide to end the dream. However, I am unable to end the dream. Luckily all it does is throw me back into the lake and I am swept under and away.

I am being prepared for surgeryThere is something wrong inside my head and it must be fixed. They administer the drugs to knock me out. I come to before the surgery is finished and somehow wander off while still on the drugs. I am now outside and realize I must get back to surgery but the dream is shifting and I assume the effects of the drugs are making it so I am getting lost. I try to ask for help but my words come out mixed up I am afraid.

10/17/19 I just recently had a major surgery on my left arm/shoulder and am wearing a bulky protective sling 24/7. I just started P.T.
In this dream I am talking to a female therapist (IRL it is a male) and she tells me she is going to put a snake on my chest. I get nervous. She brings in a 5 foot long rattle snake that is fat like it swallowed a couple cats. She puts it on me and it is very heavy, almost suffocatingly so. It starts slowly moving around as I lay on the table. I am worried it will bite me. She assures me that it will infact bite me, but not to worry. It bites my thigh but I am numb.