Hi, From the last 1 month I have been getting these headaches which start from the back of my head and travel forward. No medication seems to help it. I've tried tylenol, motrin, but nothing helps. The headache and pressure around my head is always there. I also get dizzy when I stand up or walk, I see floaters, and occassionali feel very nausious out of blue. And then a couple of days ago my 3 index fingers on my right hand became numb and then my whole hand and arm became numb. And now my left fingers are starting to become numb as well. I also feel like passing out sometimes and black outs occur sometimes for a second or so. I'm 25 years old female. What could be causing all this?