Good evening sir / madam, am having twitching in my neck and jaw area badly and also my feet fingers are twitching and my head one side feels numb and back area also becoming numb when i sit for an hour, my finger in feet tapping by itself with no movement please reply and when i stand up from sitting or lying position am feeling dizzy and loss of sensation in legs also like theres nothing inside leg pls reply me thank you so much what is the issue