And since the fibers carrying tactile information are much thicker than those carrying nociceptive signals, rubbing an injury can produce temporary relief from the pain.
Psychogenic pain is when fear, depression, stress or anxiety make a regular nociceptive or neuropathic pain feel way worse or last way longer than it normally should.
If you went flying off the swings, a doctor would classify your broken arm as acute nociceptive pain because the pain was a result of damaged bone tissue and you likely won't have any pain after it heals.