dunno,think im going nuts?

dunno what to do. for a long time i have had a bit of a problem understanding people when there were more than four or five people in a room talking. I could hear them clearly but it was like another language. but over the past 3 or 4 years it has gotten 2 the point where sometimes i'll be talking 2 a mate and i cant understand what is beeing said. so i started sort of lipreading so i can understand, everyone thinks im goin def , im not i can hear a mozzy fart at great distance. and now for the past few months my typing is going 2 crpp as well, i think im typin one thing and when i read it half fr the words are back 2 front or in a wrong spot.it is really frustrating. im only in late 30's. watched me father wither away from alsimers and parkinsons. hope thats not me 2.