OP
I’d say that trip sounds quite extreme. That is not a very big boat in demanding waters
I think it was like learning to mountain bike by going on the back of a tandem down a downhill course
No idea about PTSD
If you really feel it has got to you. Then there are ways to deal with things. Talking is great so posting was a good plan.
I find mindfulness helpful for putting things in context.I think mindfulness would say. You had a crap time and it made you feel bad. Don’t fight, just go with the feeling. Trying to solve the problem of feeling bad makes things worse.
The breath mediation is good for clearing the mind as well
my hunch is you’ll be fine. But if you want to find out more try this book. I only read some of it but I thought it was great
link