Appendix dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.

Interpretation 1 — Dream Explanations - Anonymous

Dreams of pain in the appendix are venting dreams that are assisting you to move past feelings of -denial, anger and resentment that are rooted in your family history.

The more acute the pain, the more acute your -disdain.

The remedy for this kind of dream is to leave the past behind and focus on what is currently bringing value and beauty.

Source: Strangest Dream Explanations Author: Dream Explanations - Anonymous

Interpretation 2 — Joan Seaman - Tom Philbin

Something that is not useful but can cause problems.
Source: New American Dream Dictionary Author: Joan Seaman - Tom Philbin