...
It's not just pain, it's his heart. His f*cking bad heart. His one true weakness. The very side-effect of his powers and the permanent change he's undergone when his powers first manifested and he had no idea what to do in order to control them.
Emma tells him he's gonna die if he keeps fighting - he doesn't even try to engage the Hulk again. Because he knows he's done.
What's your education, carver? Playing in the mud in Zimbabwe? Getting AIDS? Killing yourself with soul food?
Because you just ignored the guy having a pacemaker and almost suffering a heart attack. All from a single hit.
No, it's not "being in pain in a single panel". Go back to kindergarten, at least learn how to spell your name right or anything useful, Derrick.