Pain is defined as "physical suffering or discomfort caused by illness or injury."
I choose this location because there is an urgent care facility here and they deal with people who are in pain.
This cache should be a quick park and grab, some stealth required.
Pain is a symptom of POTS. What is POTS? Postural Orthostatic Tachycardia Syndrome (POTS) is a condition that affects circulation (blood flow). It involves the autonomic nervous system (which automatically controls and regulates vital bodily functions) and sympathetic nervous system (which activates the fight or flight response).
Update: Cache is now a nano. It is in plain sight but inconspicuous. Will rethink the location if it keeps going missing.