Hypochondriac

It is fair to go to the emergency dept of the hospital and tell them that im feeling unwell?

It's all non-specific, but the nausea, tiredness, lack of concentration and swollen right leg is suspicious.

Im scared there's actually something wrong with me. But it would be good to know what it is, if there is something, instead of thinking i'm some paranoid delusional hypochondriac.

The doctor's appointment is scheduled for next monday. The paper is on thursday and friday.