Overview
You are feeling unusually tense, and it is unwise to speculate as to the reason why. Instead, accept it is just the way you feel. You should not take any differences of opinion too seriously. If you say something wrong, apologize, people are likely to forgive you, everyone knows bad moods pass as quickly as they come.
Love
If you're more irritable than usual, finding it difficult to be sensible about those you love, seeing only flaws where previously there were none. Remember the people you care about know you well but have no way of knowing what's going on in your head. Go easy on them, you may later regret some things you say.
Career
If you felt uncomfortable and confused appearing unnecessarily wound up and moody towards colleagues, your unusually poor attitude might be a contributory factor. Avoid blaming your colleagues for your anger, but rather examine the cause for your poor attitude, regain your composure and normal good-natured approach.