Sometimes when i see something, somebody, somecolour, etc. My mind starts simulating unreal events in my thoughts that feel so real. Its kind of like" Jamias vu" but very different from it. For e.g- if i see a swirling pattern on a paper my mind creates a very real like impression of a whirlpool with thunder and cloulds all around along with feelings. Then i regain myself after few minutes and come back in my own reality. Whats happening to me?