You'll find a surprising number of words that don't serve any purpose. It's typical of the words that can be eliminated nine times out of ten. The personal friend has come into the language to distinguish him from the business friend, thereby debasing both language and friendship. Someone's feeling is his personal feeling. A personal physician is one who has been called to the dressing room of a stricken actress so that she won't have to be treated by the impersonal physician assigned to the theater.
Physicians are physicians, friends are friends.
The rest is clutter. Clutter is the laborious phrase that has pushed out the short word that means the same thing. Speaking of which, we are experiencing considerable difficulty getting that word out of the language. Even your dentist will ask if you are experiencing any pain. He would, in short, be himself.