This is more common than most doms would like to admit. And it can be just as devastating as subdrop. The difference being most doms deal with it themselves because they dont want to burden or show weakness to their sub. If the dom drops quite a bit and the sub is unaware of the warning signs this can be catastrophic for their dynamic.
When a dominant drops they can experience feelings of failure, inadequacy, frustration, depression, and fear. During a drop they will often seem agitated, angry, or saddened for no apparent reason. They may lash out at those around them (agression to cover up the feelings they dont want to have). Or they may retreat from contact or conversation. (Any additional warning signs that you may know would be appreciated in the comments)
Now for the hard part… you have identified that your dom is dropping… what do you do?
This is a difficult one because it varies so much between doms what they need when they are dropping. The best thing to do is talk to your dom beforehand and find out what they would like you to do if you notice them dropping. For most there are a few things that help. Contact.. depending on your dynamic that may mean different things, a hand on their leg… kneeling with cheek pressed agenst their thigh.. massaging their shoulders… it can take many different forms.
The second is the willingness to brake a rule or protocol even if it means getting punished in order to show them your devotion. If they want you to leave.. dont. If they lash out at you.. tell them lashing out is not ok but you will accept it from them as proof of your devotion. These are just examples, you will have to decide what is the best way to help your dom yourself.
The third is sometimes an option sometimes not. You can reach out to another dom that understands dom drop and ask them to talk them through it. Keep in mind you are vary likely to be punished for doing this. Depending on your dominant possibly severely. They will often view it as a breach of trust, especially when they are in the middle of dropping and not thinking straight. So be prepared for that.
Here are some things to say to a dom that is dropping that may help.
I am ok.
I love you.
I am not hurt.
You are amazing.
I enjoyed our play.
Would you like me to clean up?
I am always here for you.
Dominants need aftercare too. We put a lot of time, effort, and thought into being good doms. This can be exhausting. Part of the reason you serve is to lessen the other burdens that they carry so that they can be better dominants to you.
Hope this helps someone out there.
Best wishes -SirHanz