i have suffered with headaches on and off for a long time but i have had one now for a week and i have also had a what i can only describe as a odd smell sensation in my nose witch comes and goes i have had a bad cold about 2 weeks ago with very bad congestion and ear problems. i am very worried that i have a brain tumor my anxiety levels have been ok for a while but they are now rising again and i slight blurred vision witch again i have suffered with before please help.