Your symptoms send up red flags. Especially the weakness in your left hand. If you are able to see a doctor, I would. Especially a Cardiologist. It would be good to address this problem as soon as possible to make sure it is not dangerous to your long term health.
Good luck sujay.
You should discuss with family members and talk with a doctor.
How do you know your body is shaking when you are asleep? Someone tell you that?
There are many things that could be causing the problems/symptoms. You need to talk with a doctor I believe.