<s>[INST] My boyfriend has a problem with concentration every 6ish weeks. He has periods of about 3 days where every so often he goes hot, can t think properly and can only perform basic actions which lasts about 10 minutes. He s had it for at least 3 years but wont go anywhere about it. I m sure its not normal. thankyou [/INST] Earle understand your concerns went through your details. I suggest you not to worry much. From the given symptoms it is very difficult to diagnose any problems. But I can assure you that there is no such mental disorders which has symptoms as you mentioned here. Please consult a psychiatrist / psychologist if you want to know more. If you require more of my help in this aspect, Please post a direct question to me in this URL. http://goo.gl/aYW2pR. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques. Hope this answers your query. Available for further clarifications. Good luck. </s>