Hi, i'm currently having headaches and a little blurred vision but my vision is already bad. do you think i have a brain tumor?

I doubt it but you should see an eye doctor as soon as possible. Visual problem often causes headache and vice versa migraine is also associated with visual disturbance. Those problems are much, much more common than brain tumor.

As mentioned, brain tumor is highly unlikely, but the underlying cause of the headaches should be addressed, as if migraine, many new and modern effective therapies now exist. Agree that there should also be some attention on an eye exam, just to be fully assured....