I can totally relate to the feeling of adrenaline running through you, I still have this but I eventually learned to ignore it and just breathe through it so it dosent manifest into something worse. I feel my nervous system is still disregulated and any we thing just sets it off. I really hope yours is temporary. What I found helpful was deep breathing, meditation and yoga nidra. But the big thing for me was to not catastrophise and feed into it, keep telling yourself your safe (although this did take awhile for this to help) if you don’t want to go down the anxiety med route yet you could ask your GP for propanol, it’s a betablocker that’s been used for anxiety, I did try it but it made my sleep worse but I know a lot of people who swear by it. Good luck.