Thats why I take little trips down to the US/Mexico border....
to get my fix in.
Yes! When returning to the regular society, you begin to assimilate new data to your character, you lose the "parental pressure" from the army hierarchy (thereby removing the need for your strongest army character traits), you see your old army ways in a new light which causes you pain, and the identity conflicts (values conflicts ++) that arise when leaving the armys system tailored for your indoctrinated "army character" causes additional pain.
Short term solution = take drugs or exogenous hormones to cover the new psychological problems with artificial means.