Hi polenta,

I'm sorry to hear things are so hard right now. My heart is with you. And you are getting help, which is the most important thing. Therapy has been super helpful for me too... Have you been able to get back to your psychopharm. to ask if the medication could be tweaked a bit?
You can only do what you feel comfortable with as far as communicating anything about your circumstance. I am of the mind of mentioning it, because depression is a serious illness it might give others a chance to understand what you are going through. To me, it the same thing as confiding in co-workers about any other illness such as cancer or MS etc. In this way, you could say, "I am doing the best I can and fully intend to stay focused whenever I can but just so you know, I am also currently getting help for this serious illness." Telling employers is a wide open arena of theories, many people have their own ideas about it. I am one for honesty in small doses, on the other hand I am not working right now and have not been for much of these 3 years that I have had MDD.
The most important thing is for you to get help and work on healing. Therapy itself is hard work, so it would seem understandable that outside work along with this internal work would be extra tiring. A good reason to take good care of yourself whenever you need to. You are in healing...
Elana