Hello there.
Hope you are feeling much better after your attack.
To answer your question, my Dr tried to explain to me what my body was going through when i was in panic. All of which you can read about on other pages on this site. She also told me that they dont do any permanant damage. Explained to me that our blood pressure as normal goes up and down through out the day,as does our heart beats. Before all this started, i used to run for miles, cycle race too, so you can image the heart rate, doing things like that. It's just that with us having this condition, we notice every minute change in our bodies, and it scares us to death. It's not our bodies that are suffering, not really, its our thoughts that are, making us worry about nothing. If you think about this logicaly, which is so hard for people with this condition to do, you say you have suffered with this for 30 years, although i know it feels like hell to have this condition, having it 30 years is such a long time, so if your body was to be affected by the panic symptoms, it would have been so by now.
When i panic and my heart rate starts seemingly going through the roof (it isnt, just my panic making me believe it is) I just think to myself "my hearts getting a free workout and all i have to do is watch the TV" Beats getting sore nipples any day (in joke for all you runners out there)
Panic and anxiety, in my humble opinion, does more damage to the soul than to your body, it just makes you sooooooo fed up, and worn out, which is why its very important that when you can, to just relax, do something you enjoy. Speaking for myself, i'm more scared of the medication i am on, and what that is doing to me than what these horrible sensations are doing to my body. Which in short, they are doing nothing, they feel horrendous, but in the end, they are just feelings, sensations.
Take care
Mudslinger uk