if your dog has it's head tilted all the time and is walking in circles then you have something to worry about.
if your dog is tilting it'h head every once and a while ... when you talk to it or if it is trying to figure something out and shows no sign of ballance issues then your dog is fine. he's just tilting his head
vestibular usually is a problem in older dogs, your two year old should be fine

my 3yr old wire hair will tilt her head at strange noises fropm my computer or if a talk to her and if i tilt my head the other way she mirrors me. she had great ballance. no issues at all well she is a little nuts but i dont think it's serious