I get really bad headaches at least once a day, most times the headache will be a sharp pain that will last about 5 minutes, then go away, and come back a bit later. Lately i have been having a constant headache with the same sharp pains within the same headache. I also find my eyes losing focus, and as much as i try to snap out of it i cant. I usually have to close my eyes for a while to refocus them. I have also notice that when I speak, alot of times I cant say what I want to. Like my mind know what it wants to say, but my mouth only gets halfway there. I have to stop and say the sentence over again. Could this be signs of a brain tumor?