Anger often acts as a pressure valve for stress you haven't been able to...

https://wiki-nest.win/index.php/Manifest_Wellness:_Where_to_Find_Us_When_You%E2%80%99re_Hitting_the_Wall

Anger often acts as a pressure valve for stress you haven't been able to release. When you carry the weight of work or home life, it shows up as a tight jaw, aching shoulders, or broken sleep