In additiion to Karin’s excellent response I would only add that you explore sleep patterns. Lack of sleep, restless sleep, waking up feeling fatigued are all indications of overtraining. Emphasize to your client that rest and recovery are as important to fitness as the exercise session.
I’m also concerned with your use of the word “stooped.” If there are indications of early-onset kyphosis, your client needs to see an orthopedic surgeon or physical therapist skilled in spinal diagnosis. I know this may not be possible. Emphasize upper and mid-back exercises, e.g. lat rows, rowing which will target the upper and mid-trap and rhomboids.