14 month pp depression!?!

My son is 14 months and I feel like the depression is sinking in. Isn't it too late for postpartum depression? I've already seen my doctor once about it when my son was 2 months old. Often times I just don't want to get out of bed but I have to for my child. This has been the past month or so.. I feel hopeless like I miss my life before my needy child. I've never been so depressed in my life. What should I do? :( anonymous because I'm embarrassed I'm feeling this awful.