I mean your senses would adapt to it which means you would die.

As you cannot die as you are invincible, your nerves cannot take damage. But that would mean your brain would overstimulate and that also cannot take damage.

So either you stay in constant pain, which has to get lower and lower as you cant handle constant pain (legalize Cannabis for those people for fucks sake).

So I guess yes, to stay invincible you have to get used to it.

Or you have pain and damage, but that state resets like all the time. So you would stay in a state of immediate pain, without remembering the past, as it has to be removed entirely, as that pain will harm your brain.

So you would stay in immediate pain without a sense of time, which is probably way way less extreme than you imagine it but still horrible.

So people, just dont believe that crap. When you die its over, and that may be an even harder truth to accept.