If this happened, most real experience is during (if not all). Most accurate during (not before or after, though there may be an aftertaste - bad still feel bad for a while when it's gone! Just like you might be happy after eating, though not eating rn). If it was really painful during, then it is entirely valid to be in pain, because that's what it was like at the time, the only thing that makes up the experience is exposure to the stimulus.