Hiya MrsMc,
Can you not take the rest of the week off? I don't think it's good to rush back when you aren't ready. You need to spend some time just trying to come to terms.
I have a really high pressure job and I don't ever take time off because it's too difficult to catch up with the work that is building up. However, I am not physically right yet to go back in, let alone emotionally. So, I'm going to try and take the rest of the week off but knowing me, will probably go in early if I feel physically able.
Just make sure you don't over do it. You and your physical and emotional heath are much more important than your job xxx