I have this pain right above my heel from playing lacrosse, please help!?

when I point my foot or flex it as hard as I can I get this pain in what I think is my achilles tendon. But it's not as noticeable when I walk or run. I'm not sure if it's the achilles or not. The pain is more behind the bone, if that makes sense. This just happened yesterday and I think it's from cutiing too hard while running