I just got back from the doctor's office. It is a mix of good and bad. He showed me the scans of the MRI and what it shows is inconclusive. He went over it slice by slice. (I guess that is why he wanted to discuss it in the office instead of an email.) No tumors or major strokes, which is good. I do have more white spots than is normal for someone my age, but you do get them when you age. It might have been caused by unnoticeable mini strokes but hard to say since I didn't have any symptoms of any kind of stroke.
So the only thing it could be is the beginning of Parkinson's. I have to go back to get checked over again between 4-6 months to see if there is any progression of the disease. Unless the tremors get very bad, he suggests I do not take the medication for the symptoms until I really need to take it. So basically just live with it.
Thanks again for all your good wishes, thoughts and prayers.