I am in agreement with the other wise ones who have posted before me. You need to make an appointment with your physician to take care of your issues.
If watching your friend go through a depressive episode is causing you concerns and affecting your mood you have to take a step back and help her as a friend and not get so emotionally involved that it is tipping you into depression. This sound like her depression is a trigger for you.
If your depression is becoming worse, you must take care of you first. That is not being selfish. Each person is responsible for seeking out help if they can and I feel you are a person that can do this.
Moderator Anxiety ~ Panic Disorders
*~* Not a mental health professional at all *~*
Dx: Anxiety/Panic, Depression, GERD, Osteoarthritis
*Wife of a Crohnie*