What Causes Tightness On The Scull And Shoulders?

Hi, may I answer your health queries right now ? Please type your query here...Thanks I have what feels like a tight band at the base of my scull goes across both shoulders. Feel very unbalanced stumble when walking. Putting hands above my head I want to fall bending over same feel I am going to hit the deck,

Extremly tired. Wake in the night if I turn over in bed and the spinning feeling is making me feel sick.