I used to be more on the side of "Oh, it will go away soon."
... then I passed out on the clinic floor Monday morning, after I couldn't find a decent doctor over the weekend.
"Go home and come back when someone else is on duty" is not always great medical advice for the patient.
They later said I was very lucky not to lose a leg, so I changed clinics!
(Cellulitis and blood poisoning that I thought at first was a bad cold. DUHH!)