broken vs bruised

Hi all! While closing a very large heavy metal gate I accidently pulled it across the top of my left foot. It hurt a little but after a minute or two seemed fine and didn't bother me the rest of the day. But this morning I woke up with a very sore foot and upon standing discovered I can barley walk on it. It's not bruised and only slightly swollen. Even though the gate hit the top of my foot it also hurts to apply pressure to the bottom of my foot under the area where the gate hit it.

My question is, is there a possibility I broke or fractured a bone? Should I seek medical treatment?

I have a history of not bruising or swelling much with fractures and sprains as well as fractures not showing up on xrays only to be diagnosed a year later by a specialist.