ambulance

an ambulance globally:
a descriptive dream symbol of no real importance that expresses your concern about your health
to ride an ambulance:
this dream symbol shows your inner worry about your health. Go see a doctor to reassure you.
to see a medical attendant:
if such a dream repeats, it has the same meaning as in the previous situation
obscure and inexplicit dream with ambulance characters:
your concern about your health is probably exaggerated, but it will do no harm to see a doctor