Seems to me the stress you have been under constantly in the last 2 years will play more of a role than the Esctasy you did a couple times 15 years ago, but I don't know much psych. Probably more productive to talk about it before they eat their gun than not to talk about it at all. Talking never killed anyone.(except for a few folks that used to work for the Clintons
)
There is an interesting question, which is more psychologically stressful. Taking a drug like Acid or Esctasy a few times vs being in a war zone under fire for a few years, or maybe loading burned bodies after an orphanage burned down. Nasty situations will fuch with your head pretty bad.