Suggest Remedy For Pain And Soreness In Foot

I run track and i haven't taken time off to rest for some time. Recently i've had a pain in my achilles tendon (which i take anti-inflammatory pills for), my foot when i put pressure on the step. It takes 15 minutes of walking to loosen it up but the pain is horrific. Any ideas on what it is? i took 6 days off from running. And also today in the morning it felt great as if i could run. When i walked to school my foot was hurting and then the pain progressed through my leg again. On the way back it hurt at the beginning. by the time i was next to my house (20min walk). It loosened up and i was fine (except for my foot which is achy on the pinky toe metatarsal)