Why Am I Unable To Put Pressure On My Ankles?

I fell over whilst wearing high heels on January 1st. At first there was very little pain in my ankle and I was able to walk very well. However every day my ankle has been getting worse and worse and now I cannot put any pressure on it at all. I rest it in the evenings but I have to work in the daytime and my work involves a lot of standing and walking. I am wearing tubigrip