Yep, you read the thread title properly. I've been to three different doctors this week, and they all cited the possibility of a tumor, potentially a cancerous one, in my brain. On Tuesday, I went blind in one eye for the whole day. Then, my vision returned the next morning, but I cannot see colors properly, they are all far too dark in my left eye. I went to an eye doctor guy, my normal doctor, and a neurologist, all citing either permanent damage to my optical nerve or a tumor which could arise from cancer. I have to get my braces pulled off to get an MRI to see whether I do or do not have cancer. It sucks balls. Discuss stuffty medical news I guess.