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

Interpretation 1 — DreamForth

To dream that you are concerned about something or someone represents your current emotions of apprehension, worry, and sadness regarding an aspect of your life. You need to assess these feelings and recognize what this issue pertains to.
Source: Dream Symbols and Analysis Author: DreamForth

Interpretation 2 — Ibn Seerin

(See Carefulness, Conscious, Watchful)
Source: Islamic Dream Interpretation Author: Ibn Seerin