Do some yoga stretches.
Put on a video from Yoga with Adriene and follow the prompts. Stretch only as far as you are comfortable with.
Task length: 10-20mins
ALTERNATIVE: If yoga stretches are triggering for you, try a different video or website that has stretches designed for your situation. If you are still uncomfortable with the choices, just do some basic stretching that relaxes your body without causing any discomfort.