Hi there and Welcome to the Depression Forum!
As i'm sure you have found on the MS forum, we are like a family over here and we all look after and take care of each other. Im glad that you have made an appointment with your doctor to have this checked out. I could completely understand if you were suffering from depression at the moment as you seem to have a lot on your plate with your MS and also with your father. We are always here if you need to talk... better out than in