Hello My Name Is Aly And For The Past Two

Hello my name is Aly and for the past two days the outer side of my ankle and foot have been in pain only when I walk or stretch it. Not severely but, it's very uncomfortable. And sometimes while I'm walking it will give out, almost like I'm walking is a pair of high heels that are to high and my ankle bends and I stumble. My calf is also numb. This is all happening on my left leg and foot. What can cause this? Is it something really dangerous? Or will it pass?