my brain is slow

recently i always headache...its lik every single day...my neck feels very pain and my head really pain also...not sure y izit...and i became forgetful...i cant remember where i park my car or where i put my things...a short term memory lost.i guess is becuz i sleep very late at nite and sumtimes...i din sleep at all..so it became lik this....lik old ppl sickness.....memory lost...but i wonder y izit short term..y not long term memory lost...i think its better to lost all..then i can start all over again:)