What Could Muscle And Groin Pain With Sore Body Suggest?

Hello, for a little over a week now I've had intense muscle pain in lower back, groin, and now left shoulder and knees, as well as left heel. I feel like I did after my motorcycle accident years ago where you wake up with an entirely sore body; although, I have done no physical activities. What could be the cause? Can't be my mattress because I've had it for years and the pain is too severe.