[G.A.S.]

Just like a doctor, get a second opinion.
A good mechanic should be able to find a front end problem.
If it happened to you, there is an issue that needs to be addressed.
I would take it to a front end alignment shop and have tham inspect it.
thats all they work on, well not all of them. You get my point.
That type of problem could be a number of things.
tie rods, ball joints strut or even a tire. unfortunatlly the car is not in front of us so it makes it more difficulte to (guess) the problem.
I would get that second opinion from a profesonial front end tech.
Alot of front end places give free estamats as well.