TheGrand547: So recently i've been having the feeling that my brain and me are essentially seperate entities and i need to know if this is any kind of mental disorder
Like some good lads advised already you should consult with a doctor and give him/her more details regarding "separate beings".
On the other hand it's not necessarily means you have a mental disorder because brain and consciousness (yourself) are indeed two separate being. For example the brain of a drug addict will do anything to get more drugs, but the addict may find his/her actions questionable.
However we don't know how far they stand with each other in your case. You haven't give us any details.
nightcraw1er.488: Strong ale would be cheaper though.
viperfdl: Not in the long run and also bad for the liver and the brain.
And let's not forget about heart and pancreas (especially).