In no way am I saying to “hold on” to anger. In fact, denying or suppressing anger results in the same kinds of stress that you are talking about. Like ANY feeling, the only way to avoid negative health consequences is to allow yourself to feel the emotion without judgement or guilt(while not *acting* on it in any way that harms yourself or others, of course). It will soon pass, and you can then use that energy in whatever ways you feel are most productive. To try and shame or rationalize your way out of an emotion is unproductive at best. Accept that humans feel a wide range of emotions for a wide range of reasons. Suppressing those emotions, even for supposedly “good” or “positive” reasons, does your mental health no good.