I’m Not That Kind of Talent

A talented individual who is respected by many and welcomed everywhere… Not at all!
A bloodthirsty battle fanatic who knows no defeat! However, he is usually kind and gentle, as well as a great boss and a subordinate who does not make a fuss!
That’s what people think of me, but in reality, I’m a sickly person who struggles to get by in everyday life, let alone in battles.
Due to excessive stress, I vomit blood.
If I’m shocked, I vomit blood.
Even if I’m slightly startled, I vomit blood.
For no reason at all, I vomit blood…
No, it’s about time everyone realized that I’m weak, but for some reason, they continue to have a strange misunderstanding about me.
So… I used to be strong—no, I still am, but for some reason my body was damaged and I can no longer use 100% of my skills? Is it because my body will be unable to withstand it?
And the reason for it is… a spell? A curse?
This is ridiculous!