Well it does feel better because when you are sick your body is tired and is somehow your private part is not...but when you are sick your body most reproduce more supplies for the body to run normal and that way u came more...I guess
it does feel better when your sick!
it'sis due to the fact that your body is sweating out all the nasty toxins from your body that or your body is just feeling twice the normal pleasure because it has been in pain for so long.
my theories
but yet it does!