Nerves Weakness pain. This problems?

It's been like five years I am facing all these problems it's gradually keep increasing Hands weakness with shakiness loose grip legs weakness and pain Muscle stiffness Fasciculation all over the body Burning and tingling sensation all over body Sharp stabbing random pains all over body Sudden jerks while sleeping or sitting Restless legs while sleeping Cramps while sitting longer Itching all over my body while running or walking Sharp random back pain suddenly comes and goes Anxiety attacks Sleeping problems Stomach bloated always Continuously Strong Headaches Chest pains which lying comes and goes Confusion and not able to take fast decisions Not able to focus on work Please suggest the best advice on I can get cured by these problems How to tackle this problems?