Anyone else gets a physical anxiety response after an irregular episode?

I had a short bout of SVT (i think...) yesterday. My heart went into a weird fluttering rhythm for about 20-30 seconds.

Inmediately after I broke out in cold sweat and had to go to the toilet. Since then I have an extreme visceral feeling of anxiety in my body. Nervousness. Frequent toilet visits. Unable to sleep well. Restless.

Even though mentally I am handling it okay, better than the last time i had it, it made me physically nervous.

I guess this must be both a conscious but also a subconscious response to a threathening situation? Anyone else also has this? How long does it take for the excess adrenaline to leave the system?