pain hypersensitivity

wish could find some kind of metric for what qualify as hypersensitive . not that care overly much for diagnosis , especially when there is no real management - which is often true for kossai - but metric and measurement of experiences can be useful to at least communicate . 

but how long do people usually feel sting after minor injury like bump ? what about cut or scrape , things that draw blood ? throughout whole life when people lay into kossai as crybaby , nuisance boy who cry wolf , do kossai literally feel pain stronger and for longer than anyone else could even imagine ?