This video might explain it-

https://www.youtube.com/watch?v=dHg50mdODFM

If it doesn't-Lemme give you a rundown-

(Oc) has bad anxiety, and can't ever seem to control it. (Oc)'s anxiety had seemed to calm down, but suddenly, a panic attack hit them while they were with (Crush). They started to break down, scream, sob, and more. (Crush) then also became scared, wanting to calm them down.

This may be vice versa!
Remember to play my crush!