Good day sir or ma am a male, 25 year of age ,5.5 ft  tall,60 kg,i have no any medical history,i dont get sick and i dont go to hospital at all. But for the past one month i have being felling hotness in my head,every day,to me think is the brian that is hot and some time i hardly remember things after i have being thought in school, i am a sex frick person i am aducted to sex and i have sex twice every day.
Degree understand your concerns went through your details. I suggest you not to worry much. Having Sex is definitely not a sin and is a good meditation technique. We unwind when having passionate sex. But there are so many other things in between. Work, family life, roles in life, adjustment, enjoyment etc. The symptoms you mention here could be due to over thinking (obsessive thinking) which normally comes when you are stressed or when you have a lot of time to think. Consult a psychological counselor and you shall know. If you require more of my help in this aspect, Please post a direct question to me in this website. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques which should help you cure your condition further. Hope this answers your query. Available for further clarifications. Good luck.