Just needing a little vent

I know everyone in the same position as I am with a baby in the hospital would feel the same but I am finding it harder and harder leaving my baby boy every day.
I have a 5yr old daughter, whom I love to death, as well and I was discharged from the hospital about 2 weeks ago now so I have been home and trying to get life on track as well as being there with my baby and looking after him but its so hard.
I love him so much as well as my daughter but I find it so hard leaving him. All I want is for him to be home with us even though I know he needs to be there for his own good and to grow and stuff.
I guess I am just not good with the patience thing and I need more support for my husband (which he's not good at) and I will get through it but I am going to talk to my GP about the chances of having PND as I think I might and that doesn't help.
Anyway sorry needed to get that out I hope it is ok I posted this here