The meaning of Gnats in dream | Dream interpretation
Petty but troublesome annoyances from jealous friends or associates are forecast in a dream concerning these irritating pests, unless you managed to elude or get rid of them, in which case the problems will clear up without any effort on your part.
Backbiters will cause you loss and trouble.
Vision: Dreaming of gnats swarming around you: trouble with a very irritating person. See Fly, Insects.