Sounds like you might just have a virus. The flu has the symptoms you name. Low calcium can cause some leg cramping, but this sounds more like a bug to me. The chills might indicate you have a fever.
Make sure you are getting plenty of fluids and rest. Treat the aches and possible fever with tylenol or motrin if you can take that.
If you are not better in a few days, get into the doctor again.
Hope that helps,
Kerry
Kerry, RN
Please click the accept button if this has helped you. A bonus is always appreciated as well.