So i dont really know where to Post this, so If its not the right place then delete it :)

So before i start this, im German so plz dont be mad if my english isnt that good :)

So my big Problem is that i have gotten a big fear of Depersonalization for almost No reason. The only possible reason for this fear would be a high on synthetic cannabinoids 4 weeks ago, because i had some Depersonalization-way experience. 

Since then, my sight is kinda weird, not unfamiliar but weird, its pretty hard to describe. 
The next Problem is that i think too much of Depersonalization and such thoughts as the infinity of universe, simulation etc., also im experiencing the feel that my Body moves even doe it doesnt.

My sleep-rythm is f*cked Up aswell, i can only sleep If im tired like i didnt sleep for 5 days.
Can anybody Tell me If These Things are normal for a panic-disorder(?) ?

And what could i possibly do against it?

Im thankful for all kinda help, have a great day :)