Have i to read it for you? Ok one time in kindergarden terms:
Doffy said: heh, you're beginning... to feel tired, arent you?!
Luffy: Yeah, well the same goes for you!!! After all the Tra-guy did to you... Huff!!!
Do you understand that?
Stop embarrassing yourself already, man.
Can
you read what you just posted? What does that dialogue mean? That they're both tired; even equally tired, if you will. "Tiredness" ≠ "Damage", so what does this dialogue do for your point? Nothing.
We saw the damage Luffy took, some punches from Bellamy mostly, and we saw the damage Doflamingo took, getting his organs destroyed beyond what a surgeon thought it was possible to survive, having his durability entirely bypassed.
Your only proof was debunked by minimal reading comprehension, so sit down.