What is RSD?
Rejection Sensitive Dysphoria. Many people with ADD/HD also have rsd, and either get irrationally angry when they feel misunderstood/rejected or become depressed. This happens as an almost immediate reaction. For example: Someone, especially a friend, tells you to be quieter or talk less and then you lash out or later start crying uncontrollably.
ADDattitudemag.com describes it as “The extreme emotional pain of perceived rejection is a feeling unique to people with ADHD, and it can be debilitating.” If you want more info on it, I have an #rsd tag too.