I don't have any problem with self-healing, since I do prefer the Star Wars d20 explanation for hitpoints: You don't get hit for real until the last few blows that take you down (do wound damage). Up until then, you get bruised, nicked, tired from dodging, use up your luck, etc.
That way, I don't see a fighter suddenly close his wounds (half a dozen arrows sticking in his shoulders and thighs, arm and belly slashed open twice) with magic, I see a battered fighter, whose sword arm is slowing down from exhaustion finding the strength to get a second wind.
My suspension of disbelief would be much harder if I did take all those "hits" to mean actual hits from arrows, swords and claws.
That way, I don't see a fighter suddenly close his wounds (half a dozen arrows sticking in his shoulders and thighs, arm and belly slashed open twice) with magic, I see a battered fighter, whose sword arm is slowing down from exhaustion finding the strength to get a second wind.
My suspension of disbelief would be much harder if I did take all those "hits" to mean actual hits from arrows, swords and claws.