Failed Erection after a marathon

So I reckon my first real experience with ED was after running a marathon now I get it my body and mind were fucked but this seems to have mentally scarred me anyone else a similar experience

You shouldn’t expect it to go up immediately after running, since the blood flow went to your muscles for the most part. It’s for me the same when I do resistance training. It won’t go up right after. Just chill and give your body time to recuperate.