Learn about chronic pain, how doctors evaluate it, and how it may be related to #PTSD. owl.li/108mR2April 29, 2016 23:42Learn about chronic pain, how doctors evaluate it, and how it may be related to #PTSD. owl.li/108mR2 Nat’l Ctr. for PTSD@VA_PTSD_InfoLearn about chronic pain, how doctors evaluate it, and how it may be related to #PTSD. owl.li/108mR2