Why Do I Feel Physical Pain In My Dreams?

[shouyo]

it releases once I wake up and leaves no scars but I clearly feel it during the dream, I even pinched myself once and felt it like in real life,
It happened to me twice now but it really confuses me alot T°T

[allenlondon]

There was a poem back in the 60s.

How can I tell if I’m really real
How can I tell ifI’m dreaming?
Just cut off the top of yournearest big toe
And wake up to the sound of the screaming.

[Buenchico]

Possibly worth a read:
https://www.vice.com/en/article/qvq7y3/when-i-get-hurt-in-a-dream-my-body-feels-it-even-after-im-awake