my friend 21 yrs old..college student...but from last few months he is expetiencing the problem of forgetness....he could not remember even small things...he would give his bike to me and when next day he has to go out he would come to the parking area and start searching for his bike..then he would suddenly remember that he has given it to me........there are in fact a lot of instances like this... in this age 21 yrs old he is facing problems to remember things which is not a good sign...........and he would then say that things just go off my mind........ he says he has a hole in his brain since childhood but everything was normal up till now and suddenly he is experiencing such difficulties is this a serious issue that i should be worried about it??? should i fix an appoinment with a pychiatrist????