Those are things that can potentially trigger a relapse.
Hungry- Low blood sugar can trigger a craving for alcohol as well as impair good judgement. Proper nutrition may be something one did not pay attention to whilst actively using/drinking.
Angry- don't let your emotions be an excuse for relapse. Got a new job? Celebrate! Got fired?Throw a pity party! But whatever you do, don't drink.
Lonely- Board. Don't isolate yourself. Get out to meetings and make sober friends.
Tired- don't let physical pain be an excuse for relapse.