gloomy (e.g. mood); depressing; irritating; troublesome; heavy (weather); cloudy
resentment; grudge; pent-up anger; frustration; bitterness
to vent one's frustration; to relieve one's pent-up anger; to let off one's pent-up feelings; to let off steam
congestion (of blood); engorgement
accumulation (of discontent, frustration, etc.); buildup; suppression (e.g. of anger)
venting one's pent-up anger; venting one's frustration; letting off steam
congestion; stagnation; stasis; pent-up feelings
congestive heart failure; CHF
pulmonary congestion; lung congestion