My symptoms...sound familiar to anyone?

For four months I've had very heavy arms and legs. It started in my legs. I walk a slight incline and it feels like I've climbed Everest. I had to cut my long hair short because I can't hold my arms up. Recently I've began to feel it in my back muscles too. Now I'm getting dizzy at times. My heart is fine. My dr is taking forever to order tests and in the meantime I can hardly make it through my shift at work. I nearly had to leave today. Do any of these symptoms sound like MS to anyone. It has been suggested by my parents dr.....who I don't see. Thank you for any replies.....