Well, it's a sign that i've gone a bit further than my body is comfortable with, which is fair. That approach works as long as there are no long term effects or injuries, of which there were none, given the otherwise simple activity.
I wouldn't say that pain necessarily implies punishing or self-hate, just pushing one's limits a bit further. In some types of martial arts that's not viewed as a bad thing either, for example, constant and somewhat strenuous exercise may lead to hypertrophy, which can be desireable for making one's body more resilient.
That said, there's nothing wrong with just doing sports more casually, for your own enjoyment as well. Consistency and technique are probably the most important aspects anyways.