Ankle or achilles?

I'm a swimmer and of course, I use my ankles and feet a lot. Sometimes if I point my left foot/ankle too hard (normally during backstroke) my ankle with freeze up. Just under the inside ankle bone it feels really tight and hurts a lot. Like under the bone but towards the direction of the heel. It's more of like... actually under the bone and below it. Then it becomes really tight at the bottom of my achilles, where it connects to the ankle. After that I'll have to slowly massage and then I'm normally out the rest of the practice. I have a really big meet coming up, so it would be a big help if someone knew if it is my ankle or achilles.

this has happened to me before too. (while swimming). I think it has something to do with your ankle cramping up. try getting more potassium by eating more bananas.

I get this in the underpart of my foot...it total cramps...so sore and then ya massage it and it slowely gets better

dunno if theres anything you can do about it