First Time Mom- Baby Blues

I am one week PP and can go from being perfectly fine one minute to balling the next. I don't feel sad but I do feel super anxious. I'm anxious about whether or not she is cold, is she eating enough (I'm breastfeeding & pumping is not going well), is she ever going to sleep for more then 2 hours, how I am going to handle doing it all on my own when my husband goes back to work, ect. She also won't sleep in a bed, only sleeps in someone's arms, her swing or bouncer and I'm worried that this is not good for her. I am also worried that I will lonely once he returns to work next week as we don't have any family within 4 hours of where we live (I'm really struggling with my mom living so far away) and all of our friends have full time jobs and live 30+ minutes away. I also have absolutely no appetite and I'm wondering if that will come back. It can't be good since I'm breastfeeding.

Anyone else feel like this or have these issues with their little one? Did the nervousness/anxiety go away?