Usually the first symptom is the car doesn’t seem to steer the same as it used to

Often low speed steering wheel wobble is confused with an out of balance wheel, though in some cases it can be.
Usually a wobble at 60 kph and below is associated with an out of round tyre, a retread lifting, or a buckled wheel.
Each of these conditions are potentially dangerous, so make sure you have your car checked at the first sign of this symptom without delay.