Postpartum depression???

I’m 8 weeks pp. I’ve started feeling really down, all I wanna do is cry, I feel absolutely sick to my stomach. I told my dh how I was feeling and he offered to get a babysitter and take me out for awhile and I didn’t want to go. I really don’t care to do anything and I just feel like I’m in a fog. Could this be pp depression? Has anyone else dealt with this?