I am doing job and i have realised this problem from last 3-4 years. Actually when my senior asks me some questions although i have done the work or i have done all the homework, still i get confuse while explaining it to him/her, and it looks like I am blank totally or i haven't done the work properly. Same happens with me when i am debating on some topic. I know the logics, facts but during debate i forget many and when everything gets over i always think i could have said this, that, i haven't mentioned this fact etc etc. It is too much irritating and frustrating, which also hampering my personal growth. What could be the possible reasons and how can i get rid of this problem. Please help.