I think you should talk to your doctor or psychiatrist N having a professional tell you the LESS Likelyness of you having a brain tumor will make you feel more at ease a more comfortable, I can sometimes do the same.. I google everything And scare myself silly.. But until I'm told and proven that it is not likely then I can continue my normal thoughts.. Just letting you know I went through alot of scans as a child an I'm perfectly healthy now! I think you will be fine