In a depression evaluation, service history usually surfaces late, assuming it surfaces at all. Somebody asks what you do for a living, you mention the Army, or eleven years riding the engine, and the appointment rolls onward. Something useful gets dropped there, because time in uniform or on a rig carries particular details a clinician can put to work, and hardly any of those details have a box on an intake form.
What that background contributes is the subject here. Not what it proves about you, not what it entitles you to, only what it honestly changes about the way a careful assessment gets done. Take all of it as general background, not as medical advice.
What a service history actually tells a clinician
Exposures come first. Standing near blasts, breaching doors, crewing artillery or mortars, landing hard again and again, rolling a vehicle, boxing and combatives, and a long run of structure fires with their falls and struck-by events add up to a record of impacts to the head that nobody examined closely at the time. Most never produced a diagnosis, for the plain reason that no one halted a training schedule or pulled someone off shift to obtain one. A clinician who learns about them follows up along lines a clinician who never hears about them cannot.
Why that matters deserves careful wording. Among the things clinicians count as raising the odds that an initial round of antidepressants leaves someone short of relief is a past full of impacts to the head. That is the whole of it. No diagnosis follows from it, and by itself it is not grounds for being offered some specific treatment. It buys a more thorough evaluation, along with an agreed next move should the opening effort disappoint.
Sleep comes next, and in this group it is rarely ordinary. Rotating shifts, nights, rest taken in short pieces, and years of being woken by a tone leave habits that outlast the career. Apnea nobody has treated, nightmares, and an internal clock that has not kept civilian hours in a decade each make depressive symptoms worse, and each has its own remedy. Leave sleep out and you are treating an episode with one hand tied behind your back.
Pain and hearing follow. Long-running trouble in the back, knees, shoulders, and neck keeps a person immobile, sleepless, and reliant on medicines that carry mood effects of their own. Lost hearing and ringing ears gradually ease people out of conversations and away from full rooms, and that retreat can resemble the shrinking social world of depression while arising from something else entirely. Put both on the list to be examined.
Last come the parts that resist a chart. People who did not come back. Choices made fast on poor information that you are still carrying. Runs that ended badly. Walking into a household that had managed perfectly well without you. Trading work whose value was obvious every day for work whose value is not. Medication is not the answer to any of that, yet those things give a depressive episode its particular contours, and a therapist who already grasps the setting becomes useful sooner than one who has to be taught it from scratch.
What the evaluation should cover
A careful visit asks about drinking without squeamishness, because alcohol is usually the nearest tool at hand and the one most often understated in an exam room. It asks about firearms at home, not in order to remove anything, but because what sits within reach matters during the worst weeks, and distance can be arranged for a while. It treats traumatic stress symptoms as their own line of questioning instead of folding them into mood, since the two often arrive together and call for different approaches. And it asks what has already been attempted: care through the VA, care you paid for yourself, care you quit inside a month, and care you never mentioned to anybody.
Be precise about amount and duration when you answer. A medicine that never moved off its introductory dose, or that you set down after a fortnight because nothing had budged, never got a fair hearing. Most prescribers look for a stretch of several weeks on a meaningful dose before drawing conclusions. If four or five are behind you, it pays to work out which were truly tested and which ended early, because that distinction shapes whatever comes next.
When the standard sequence has already been run
Plenty of veterans and first responders are long past the first line. Therapy has happened, often more than once and with more than one clinician, and the list of medicines is lengthy. After two or more adequate antidepressant trials have fallen short, the label clinicians reach for is treatment-resistant depression, and the range of choices broadens: transcranial magnetic stimulation, a medication added to reinforce the one already prescribed, ketamine delivered with clinical supervision, the esketamine spray Spravato under its restricted dispensing rules, electroconvulsive therapy in the most severe illness, and studies currently recruiting.
Ask blunt questions about any of them. Who is observing you during the appointment and afterward, what the response is if your blood pressure climbs, how the treatment behaves alongside what you already take, how many visits a full course runs to, and what follows a disappointing result. Plain answers are a better sign than eagerness. If anyone talks about one of these as though it acts on a brain injury itself, slow down, because none of them treat concussion or traumatic brain injury.
One clinic's own account of how it approaches people with this background sits on the page it writes for veterans and first responders, which sets out the questions it asks and the shape of a consultation there. Read it as self-description, then arrive with questions of your own.
A closing practical note. Ask whichever clinician you see to commit the history to paper once, thoroughly, so that you are not rebuilding it out loud in every new waiting room. Deployments and assignments, the impacts you can recall, surgeries, each medication with its dose, and the current state of your sleep. One sitting covers it, and it spares you the restart at each new provider. If a night turns dangerous, 988 answers both calls and texts, and pressing 1 connects you with the Veterans Crisis Line, where the people on the other end do this work specifically.