I lifted a heavy tote 2 days ago and felt a pop in my head that was followed instantly by a headache on the top of my head. Any time I moved it felt like my brain was a pinball in a pinball machine. I rested that afternoon and took a couple of tylenol that helped a little bit. Yesterday, the headache came back after I moved some more totes around. Today, anytime I bend over, I feel dizzy and light headed. Should I go get this checked out.