i feel the nerves in my brain stretched upwards. It has been like this for many years. I have had difficulty in thinking/concentrating properly and at times also get headaches bcoz of this. I have been trying breathing/yoga - pranayaam exercises to correct this problem for the past many years... but have got no positive development. my b12 count is 185. Recently I have also started taking b12 shots and medication to correct my b12 levels. any suggestions.