because I just imagine the conversation if I were to call a doctor's office:
me: I need to make an appointment.
them: what is wrong, ma'am?
me: my right side keeps getting swollen.
them: the right side of what?
me: of me! of my body! my right hand, my right arm, my right foot.
them: excuse me?
me: it is like I am bloating, but only half of my body.
do you see my problem?