Why am I getting these pains in my head?

For a few weeks now I get these terribly painful headaches also 4-5 times a day my vision goes blury and it's impossible for me to see. And when I'm writting something down it's like my brain doesn't controll my eyes they like keep moving, and the other week my ear was bleeding and my legs keep going numb and my head gets heavy and my balance isn't so good some of the time, what could be wrong with me, please help! Thanks in advance x