OMG, Laura! I was rear ended at a stop light about a year ago but it was only calculated at 10mph. It hurt like hell so I can't imagine what you feel like. I had to see a chiropractor for months. It was worth it though.
I hope you get plenty of rest and heal quickly. I am so glad that your mom is able to come and help! YEAH for mom!
Sending lots of hugs (don't worry I am not squeezing hard so I won't hurt you! )!