I miss the hospital - always paranoid

Amanda • Proud Mother and Wife to my little family
My daughter was born exactly one week ago  and we stayed in the hospital for four days due to her not gaining enough weight. 
While in the hospital I couldn't wait to be sent home. I was tired of the constant charting, measuring, wake up calls every few hours for medicines and vitals... I felt anxiety having to meet quotas for my daughter to eat, poop and pee on a strict schedule. 
We've been home for three days now and every day I find myself even more anxious, stressed and fearful. I'm in tears constantly worried that something is wrong with her, or with me and there's no nurse to catch it.
My husband has been an amazing support and honestly, nothing has happened that I actually need to worry over... We already saw the pediatrician and my OB and both said baby and I are doing perfect. 
But once again, I'm sitting here with my husband silently having an anxiety attack because she's crying and I can't immediately soothe her. 
I don't think this is post partum depression - but I feel this overwhelming panic of not being at the hospital and I can't stop crying because of it.
I dont know what to do to make this go away