The steering seems to wonder in low speeds especially when you hit a bump or the middle white line

Your front end alignment is out. It could be something as simple as a toe setting that needs adjusting. It could also be caused by worn or damaged front suspension parts. And, you can't rule out low tire pressure. One extremely low tire,esspecially if it is a rear tire will cause the car to wander. If the steering is pulling to the right or left, it could have a bad radial tire. If a radial tire goes bad, it loses it's grip, causing the car to pull toward the good tire. Unless it's on the rear, in which case you would not feel it pulling, rather it would be more like the rear was slipping or "fish-tailiang". If the problem came on suddenly, and you haven't hit any curbs or huge potholes, I would think it is a low tire. If you don't find a low tire, then you need to get to a front end alignment shop. Make sure they inspect the suspension for worn or damaged parts.