Re: Do You Have This?
"I see the flashes, and also I feel my heartbeat oddly getting more noticeable in specific body parts as the stomach."
I had this exact same thing when I would get into a trance before projecting out of body. It always prevented me from fully exiting the body.
It the blood not being able to travel down past the abdominal aorta. As you relax energy begins flowing more and it stagnates at your blockages. It's from a combination of liver congestion, vascular constriction from low blood co2 levels (research Buteyko breathing) and energy that it not grounding maybe some emotional block as well in your solar plexus (ginger and ginseng help for this, as well as horse stance and meditation and pelvic/ diaphragmatic breathing).
"Also, when I am lying down, everything its dark and I have my eyes closed, any sudden noise will make my body jump and I will see INSIDE my eyelids a sudden explosion of whiteness. One day it even looked like a white wall with words, like the page of a book. I also have a strange symptom at night sometimes, I am trying to relax to sleep and suddenly I feel like I am falling or tripping over, and as a reflex my legs do an uncomfortable spasm. Its like my body in those moments really thinks we are standing up in the ground and acts like he would do if we would trip over in that context."
Bro that is exactly the pre-exit symptoms before you leave your body and project in a dream or astral projection. Especially seeing the white pages of a book (i am guessing you read a lot :) ) The jerking and sudden awakening is when your consciousness is returning to your physical body.
Now, what also is happening is that you have entities in your etheric body. As you are leaving and return into your body there is a lot of turbulence and dissonance from these entities saturating your energy system and making it difficult for your energy to flow. If you remember my post on the Ghost Trapper, it is only during this phase when I just start drifting off to sleep that my leg will jerk and an entity will be caught and grounded down through the wire into the earth. This is when the pivotal moment when the energy system spikes in order to push or project consciousness from the body to dream or astral travel.