Hey Jilli
I would be looking to see if the front axle nut is still tight and check the front brake caliper mounting bolts as well
As you have had a new tyre recently it would defenitley pay to check everything they have touched
Perhaps see if Thruster or one of the other forum boys can come over and have a look, I wouldn't be riding it until you are sure it is safe
You might also check that you don't have any loose or broken spokes in the front wheel.Also,if the person fitting the tyre has put the rim on its side with the front disc facing down,and put some pressure on it when fitting the tyre on the rim,it is not that uncommon to find that the rotor is warped.
nobody
Or it could be the Chardie Jilli....