Is there some health conditions that are linked to uncontrolled or unresolved Anger?

Do you mean a psychological cause? Or some physical health issue caused by unrelenting anger? Like say, high blood pressure. Psychological causes however, there are a number of conditions that can cause it. Such as Bipolar disorder. I would recommend looking into anger management or talking to someone about your problems. Usually anger is caused by an inability to cope with issues, it happens to a lot of people. Its just a matter of figuring out how to relieve your anger. Talking to someone about why you're angry helps. Or trying to figure out the reasons you get angry and then finding a healthy way to solve that issue.