I am having a sharp pain in my head on the left side and the be hide my ear, also the pain goes to the my right side. Then, I get dizzy and I fall also my vision has been really blurry at times. My lower back has been hurting really bad and pain shoots down to my legs and my hips hurt it mostly the left side. I had a MRI on my head and it came back normal but I know something is wrong. Any ideas of what it might be?