PPD - scared to take baby out

Im a bit embarrassed to admit that once again I am feeling depress. I know I should feel happy my baby is home, but I am feeling extremely anxious and scared 😔.. I had a really stressful pregnancy and I guess I just want my baby to be safe and healthy to the point I don’t want no one touching her. I notice I started feeling this way when my husband had to leave back to work two days after A’lani was born and I started to feel soo scared. I have a 9 year old son with Autism and he has 2 Drs appointment on Wednesday and I cant even eat I am just thinking and thinking what if A’lani gets sick what if there is a virus qnd because I took her out she gets sick.. I know i cannot keep her in a bouble.. 😢 I don’t have parents or a sister or even anyone that I can ask for help my husband is 8 hours aways and my A’lani is a week old. I feel so guilty. For both my kids if I could Would would split my self in two .. Has anyone been through something similar if so how did you deal with this feelings 😢