I've been having some weird experiences the last 2 days. 2 days ago, I reached this state where my senses were "muted" and my mind suddenly became hyper focused, every thought was clear and it was working extremely fast. When I opened my eyes my body felt weird where it was like I could feel energy flowing through it in a very blissful way. I even got a slight foot cramp at that moment when the pain suddenly dispersed throughout my foot and it felt good. Yesterday I went to take a nap and I got into a weird "dream" when I suddenly woke up paralyzed, vibrating violently and had a loud roaring noise and then I panicked for a bit until I got back into my senses. Then the following night after another meditation session, I could not sleep because there was heavy pressure in the middle of my forehead and I kept seeing weird visions, like being stuck in a hypagognic state but very intense. These are all accompanied by an ability to recall a lot of dreams (even ones which happened over 10 years ago) and a couple of lucid dreams. Are these sensations normal?
These are all things related to letting go of the PMR data stream. What other people call precursors for OBEs. Especially the feeling of being paralyzed and vibrations often precedes being able to "get out of your body" and zoom around, or do other things.
The heavy feeling is most likely a little fear test. One time I had just gotten out and was standing by my bed. Someone large grabbed me from behind in a death grip. I knew what this was and I just relaxed and said, "Do your worst." The sensation immediately stopped and I went on my way. If you don't like the hypnagogic visions you can probably tone them down a bit, or even stop them with some Intent.
Welcome to the other side of reality.