grief and depression

I am in a deep depression and am also dealing with a lot of grief after lossing 2 special people in my life within 8 days of each other.  Once they both passed away the eating disorder became a lot more intense with some new behaviors.  I feel like I don't want to deal with the eating disorder at this time because I feel that I need to deal with my losses and I think that my only control in my life is having the eating disorder with me because that is what I can turn to when things get to be to emotional with the grief and depression.  I feel like I need to work through the grief before I can work on the eating disorder.  I dont' believe that I can do both at the same time and sometimes I feel like having the eating disorder keeps me going because it gives me something else to focus on other than losing the girls.  It's the only thing that I have control over and it gives me something else to focus on other than my losses.  Do you think that I need to work on both issues at the same time or deal with one and then tackle the other one which is what I bleieve that I need to do and my main concern is the grieving.