Lethargy dream meaning is explained below using 1 different source. Each interpretation is shown with its source.
Interpretation 1 — Martha Clarke
To see yourself being lethargic can have two interpretations.
If it causes you stress, it is a sign of anxiety. You feel the need to get moving, but you can’t, whether it is because of external factors or your own inability.
If the lethargy is pleasant, it could be an unconscious way to compensate for a stressful or exhausting state you are subject to in real life.
Source: The Big Dictionary of Dreams • Author: Martha Clarke