Hi, I wasn´t at home alone because my hubby had to take care of our two year old, but was definitely able to look after myself and prepare some food etc. Not much else for the first two weeks mind you, even sitting in the garden tired me out.
After that we went for holiday in the hills and I did walk an hour or two once or twice a day, depending on how I felt. Still was getting tired quickly and needed lots of rest.
Good luck with your recovery, hope you will feel better soon !