What Causes Double Vision Along With Tremors In The Right Hand?

It is too difficult for me to use the body person. For example I have gradual to severe breathing . I have double vision especially later in the day . My right hand shakes sometimes. Or both have tremors . I am now having difficulty rising up from a chair or bed. I feel like I m going to fall because I have fallen several times . I am being checked by my pulmonary doctor, and my neurologist who also treats me for migraines with Botox. I have had facial spasms for about 5 years which has been treated with Botox during that period. See, I m very complicated. My calfs have been sore for three days which was not after a fall.