I think thats gotta be one of the most important things we should have. That person(your PCP) sees you frequently (make that happen).He/She hopefully is compassionate and attentive to your complaints,always documenting your progress.If your's isn't that, please find one, if you can. Bring them fact sheets(print this site) I got mine through free care a couple years ago. Luckily she was listed as a pcp when I got insurance through work. He or She is your reporter to the medical society.
good luck!