Hello,
Thank you for your query at DoctorSpring.com
If your x rays are normal then you are most probably not having any bony injury .There are maximum chances that you may have sprain at your foot. A sprain generally take 4-6 weeks to heal with precautions like rest and immobilisation .
In my opinion you should wait,do rest and warm fomentation over affected limb.
Hope this all will help.
Regards.