I understand what you mean. The way you described it helped me figure out what's been going on with me- it's hard to notice whats going on until it's over because it's so overwhelming, and it's difficult to talk about with my T because I don't know how to word it so it's comprehensible.
What you said about the vision happens to me, as well as the 'storm'. I call it layered thoughts because even if they aren't exactly thoughts, there's a lot of noise going on in my head, and a lot of abstract thoughts at the same time as ..normal thoughts. I hope this made sense.

Stress really intensifies it for me, when that happens I retreat and do something that can take my mind off things- ie. watch a good korean drama, cuddle with a soft blanket, listen to music and make art.
Finding something that will soothe your senses might help.
touch- something soft or some comfortable clothes. sight- a soothingly lit room (maybe you can find a bright nightlight that shines colors on the wall in sequence. sound- natural sounds like thunder or the ocean help me.
Those are the main senses that effect me the most when I try to comfort myself. If you have a punching bag, if you're overwhelmed by the storm you can go at it or do any physical activity where you're not too stimulated by others.

Anyway, I hope I was able to help somehow, and I hope that you're doing better today. Take care