I must have missed your question originally as I would have answered if I'd seen it. I know that there aren't as many people with VP shunts around so all the info you can get even though I can't specifically answer if you will be allowed home if you live on your own.
I had my VP shunt fitted in Feb 2010. I was in hospital for 5 days after the operation, mainly due to abdominal pain and them not liking wanting to discharge me on a weekend.
Once I was home I was able to get around ok. I didn't suffer too badly from low pressure headaches just found that I got tired very quickly. I didn't feel as if I needed anyone at home with me although I'm can't remember whether they asked me if I had anyone. My husband took some time off but he got under my feet so I soon sent him back to work
Stomach was definately more painful than the head. My head just felt a bit numb to the touch but the surgeon told me it could take up to about 12 months to get the feeling back.
I went back to work after about 4 weeks albeit on a phased reduced hours basis.
Hope some of this helps.