Have Tremors, Sore Muscles, Numbness In Thigh, Shaking Hands, Twitching Fingers. Help

For the last three years I have had problems with tremors, sore muscles, a tingling numb feeling in the back of my right thigh, shaking of the hands and twitching of the fingers. My problems are getting worse my movements are slow. If I sit for to long my legs freeze up on me. When I fall I cannot get up myself, I need help. I cannot squat without being off balance and cannot get up from a squatting position. It is affecting my speech and writing skills. Twice I have had to go to the ER from my falls. When I walk I don't life my feet up I drag them and I am not sure when that started because a family member pointed it out to me. If I am in bed I cannot just roll over I have to use to hands to support myself to do it. I am so frustrated and loss my job as a bus driver. I just feel so hopeless.