sudden foot pain

[Madamscorp]

The last 2 weeks on three separate occasions,I have had a sudden pain in the side of my foot. It is very painful and feels as if the bones have locked up or dislocated. I am unable to put my foot down. It then cracked ( made me swear with pain) . Anyway last night I was sitting down and it happened again. I had to limp around. Lasted about 5 hours. Appeared slightly swollen. To touch it made me jump it was so sore. Eventually it cracked and I screamed. Today it is a lot less painful but feels sore and weak.
The only thing I have done is few weeks ago one of my dc rollerboots dropped on it.
I run probably couple times a week but haven't knowingly injured it.
Should I bother going to get it looked at?
Any idea what it could be?

Its quite puffy looking at it

i find as i get older that my bones don't seem as well connected as they used to be. So i get pain from bones in the feet and knees feeling as if thye have slipped out of alignement. I rest and rub gently and wait for it to ease up. I also carry an elastic bandage just in case. I'll be watching your thread with interest to see if i can better understand my bod.