I have these "episodes" in lack of a better word that look like something between anxiety and panic attack. Let's say I feel relatively okay, then suddenly I start feeling this intense fear (usually after thinking of something or just walking around and feeling exposed, but often it's not something very clear). The fear might come gradually but quickly and I end up feeling unsafe, feeling this paralysing fear/dread so intense that I feel unable to do anything and it lasts for hours. I've been researching this topic to understand what is happening to me but I couldn't find anything like this, they talk about either anxiety (which implies worry, stress and thinking a lot, and at the beginning I might do that a bit but then when the fear appears I stop thinking about anything but the fear won't subside) or panic attack (I had a couple of those, they feel similar to what I have but the panic attack is more sudden and more intense). Has anyone had something similar? Do you know what this is?