Discussion: Apart from the brain and liver, most of the major organs in the human body are pain-sensitive.

We can feel pain in our bodies almost anywhere possible. Although there is no "brain pain," migraines are one of the most troublesome. The liver has no pain, but the gallbladder and nearby organs have pain sensations. The pains of chronic liver patients (like me) are horrible because the body rots! But this is not a pain of the liver itself.

"Physical pain - is a short or continuous alarm sensation caused by temporary or permanent cell damage (above a certain threshold) in tissue with sensory nerves (nociceptors)." Pain is a part of the self-defense mechanism.

"Inflammation - is a short or continuous immune response caused by temporary or permanent cell damage (above a certain threshold)" intended to rehabilitate the damaged tissue."

Link: Subjective pain scale and determining the objective pain level.
https://www.sf-healing.com/page/223 (Copy & Paste)