Thanks a lot man. I really appreciate it. The thing that disturbs me the most is this:
After getting my new tires, new rotors, sanded brake pads, and aligned and balanced wheels the car started shaking violently as I was taking it out of the shop! Even the mechanic was clueless as of why that was happening. The whole car shock, even at idle, to the degree where I was scared of driving it! That kept happening for a day or two then went away.
But, I keep thinking whatever caused that shake could be responsible for either both or at least one of the shakes: the slow speed shake and high speed shake.
Anyway, I started a new job this week so I can't take a day off to take the car to the mechanic. But thankfully my new job is in Woodbridge so I am close to RMP Motors. I am planning to go see them next week hopefully.