The function of anger is to protect vulnerability and neutralize threat.
The threat humans cognitively perceive is almost always to the ego i.e., how we want to think of ourselves and have others think of us. Anger neutralizes ego-threat by devaluing, demeaning, or undermining the “power” of the person perceived to be threatening. Humans get angry when they don’t get what they want, when they’re disrespected, or when they perceive something is unjust/unfair. Anger, the emotion, is a chemical messenger. It communicates to us, to others, and motivates us to act, speak, do something. Healthy responses to anger include being assertive, feeling empowered, protecting ourselves and love ones from ACTUAL threat, setting boundaries with others, and making social change for justice (for example). It becomes unhealthy when we become passive-aggressive, violent, vengeful, spiteful, aggressive, resentful, sarcastic, “moody”, rude etc.
Receive the message and respond from a wise, calm place after the intensity of the emotion has past. Sometimes we have to act in the moment. Our ancestors may have required this for fight/flight survival. These days, we can generally PAUSE and calm the self before responding from a mindful and compassionate heart and mind. Remember: Hurt people, hurt people.
Think about what it means to be human. Yes, we have internalised toxic levels of pressure to be a certain way. We also know, as we mature, that being a certain way it complete bull shit and nonsense. I saw a quote once that said “Can you remember who you were, before the world told you who you should be?” -Charles Bukowski. I don’t know who this person is, but it’s the truth. Come home to yourself, and reach out for help from a professional if you need some support or help with that.
I would infer that you may be depleted in some area of your life. Generally, when I am having any of these experiences I can recognise that my basic needs, and possibly even transformative, needs are not met. My basic needs are food and water, adequate sleep, shelter and safety, social connection (belonging), and esteem needs (e.g., self-respect, self-worth, self-competence, mastery and achievement, integrity, sense of freedom and independence etc.). Perhaps only when all my deficiency needs are met, and I’m experiencing dissatisfaction with my growth needs, do I feel Restless, Irritable, and Discontent in this area of my life – however I assume some would argue that if I am feeling that way when attending to my growth needs, then I may have slipped back to Esteem Needs. You can look up Maslow’s Hierarchy of Needs for a visual representation if you like, using a search engine. Below is a GIF that I created to educate people on how we can buffer ourselves to vulnerabilities. It’s very telling to go into the body when we haven’t eat for a while, may be we’re running on caffeine, and you can feel the restlessness in the body. We have to fuel up when we’re hungry to buffer ourselves from becoming irritable and restless. If you’re feeling discontent with life, I would suggest a social activity, play time with friends, working on a project of some kind, or getting involved in your community.