I was at work and burnt my hand and it really hurt but there were guests around so I couldn't let it out, I mouthed an 'arghhh' and a 'F**K!' silently, my stomach shot with pain as I did this. I then became stressed and I could still feel the tremor of internal pain. It didn't subside until I was socialising with a group, I could let energy out, and it was incredibly joyful to be doing so.
I've never had this experience before but it is interesting how energy takes form, changing - bad energy can become good energy; it just has to keep moving.