It is perfectly normal. My little girl was only there for a short time, and I thought I was completely fine with it. Turns out I was just sick... It really helped me to call anytime I thought about her and couldn't get there. I was lucky enough to be able to go every day. My Mom drove me until I lifted my own driving restriction. Her pediatrician would also call me around the same time each day. It helped knowing that it was almost certainly a routine call.
I completely freaked out when they told me she was coming home. She had a dramatic and sudden improvement in her feedings. They told me on Wednesday that she would probably be another week (really sad day), then on Thursday that she would almost certainly come home on Friday. I panicked that we couldn't take care of her at home and thought she would be safer in the NICU. I was so happy to be able to bring her home and so scared at the same time. I know this isn't what you asked about, but you might want to know that those mixed feelings are equally normal. It seemed strange after looking forward to that day for what seemed like an eternity.
