Can anyone steer me to any studies that have been done concerning personality changes and chronic pain. I have been recieving some concern lately from loved ones who state that my personality has really changed over the past 8 years. I explained that it was largely due to being in pain all the time, and that at times it was just to hard to be nice to them. lol. Seriously though I have heard this before that pain changes the personality, makes us more somber, serious and depressed. Let me know.