Empty stomach
An unfed inner cavity — hunger as a physical signal from a body that has been waiting too long.
An empty stomach in a dream is the dream's image of hunger as a physical signal from a body that has been waiting too long to be fed. The stomach does not negotiate; it reports. The dream brings the empty stomach when something in your life — an emotional need, a creative input, a relationship — has been undernourished for long enough to be reported in the body. An empty stomach met with a proper meal is the dream affirming that the signal was heard. An empty stomach ignored, with the hunger growing, is the dream noting that the basic need is still untended, and the body's reports are becoming the only honest channel left.