Call-center work stacks long call blocks, after-call documentation, and busy queues into one chair. When sciatica symptoms show up there, the usual advice is either "push through" or "take more time off." Neither one is a plan you can run inside adherence rules.
A more useful first step is to stop assuming what the ache means and start mapping when it appears.
Keep a one-line log for a week. For each entry, write:
when symptoms began
whether discomfort traveled from the lower back into the leg
the work condition (live call, documentation, break, queue, task change)
the position you were actually using
whether you changed anything at the next transition
That record is for you, your clinician, and your workplace process. It is not a diagnosis.
Tie any position change to a transition that already exists: after a call disconnects, before documentation, at a scheduled break. Do not drop a live contact to move. Use only positions already approved for you.
If warning signs your clinician named appear, or workplace policy requires a report, follow that path. Hiding the pattern does not protect a target.
This is workplace support, not medical care.