Sir, I am a boy of 17 and going to read 12th class but certainly I realise that I am having some problems with my brain fir example I got huge confused when studying even in very common and easy topic like when I try to add something for ex 28+50, my brain tells the ans in 1 sec that is 78 and after that my brain generates so many question like how I get the and is it true or not even I knows that it is true. Another ex like when I see any no. Anywhere like take 6 and when I pronounce 6 as six in mind than after that brain generates some useless question that how I was able to pronounce 6 as six. Sir I am very good student and I got 9.8 cgpa in cbse 10th exam but this get starts some 20 days ago when I was reading a chapter of chemistry. So please sir understand my problem this confusion causes headache to me and totally disturbs my mind and I am having huge problems with my studies because of this symptoms. Please tell me what is cause behind this problems and what could be the solutions. I am waiting for your answer. Thanks. By Vikas patel.