Everyone has gone through bouts of depression at one time or another. For some, it's practically debilitating and others can handle it in stride without much of a bat of the eyelashes. I recently recovered from a long time depression with the help of medications and my Dominant's caring. It's never an easy process, but being reminded that your submission is still desired can help.
When I was depressed, I didn't find joy in doing the things I normally did for my Dominant. It was hard getting up every day to make his coffee and care for him as usual. Some days he allowed me to 'sit this one out', but usually he just took me under his patient wing and nudged me back into submitting to him.
Finding your way back out of the darkness isn't always easy. There are a lot of inner thoughts telling you to stay there, in the void of no comfort, dark peace and sadness. I've been there too many times to count. It is possible though to continue your submission to some degree and still be depressed. It may even be your window out.
Keep the Routine
The last thing you want to do is keep a routine going when you feel like your world is at an impasse, but I highly recommend trying to keep your daily routine intact as much as possible. Reminding yourself that this is the way you were happy and will continue to be happy might just resolve some of those depressive feelings. Even when I was depressed, I still made his coffee and cooked his meals (although less fancy). I still called him by his title and followed most of my rules. He did relax a few of them but reminded me that if I continued to do them that he would be pleased.
Get Out of Bed
Feeling bad for yourself always displays outwardly as not getting out of bed, not bathing or not bathing frequently and a lack of self-care for how you look. Force yourself to continue to take care of your body even if you don't feel like it. Dressing how you feel doesn't encourage a change in your mood, but drives you deeper. Falling into the comfort of your bed and not getting moving within a decent time can worsen your depression. Your dominant is still looking to you to be a companion and one they want to be around. Remember the saying that a submissive is a reflection on the dominant? Keep the illusion up even if you feel horrible inside. Your dominant will thank you for it.
Ask for Help
Wallowing in your sadness is okay for awhile. No one can go through life without feeling depression for a short time, but know that you should ask for help if it gets to the point that you don't have any good feelings anymore. Going to friends to talk if you don't think professional help is necessary is a good first step. Let them help you revive the happiness that is in there. If you notice your friends trying to get you out of the house and moving again, listen to them. They can see your changes and are worried about you.
Get professional help if your depression lasts longer than 2 weeks.
If you aren't sure if you are depressed, here are some symptoms and markers for depressive states.