Heel Pain – – Retrocalcaneal Bursitis?

I just recently got back into playing soccer. I haven’t played in almost 10 years. I haven’t been really athletic or exercised within those 10 years. So far, in the last 2 weeks, I have only been to about 4 practices and one game. A few days after our first game, I noticed pain in both of my heels. I reserched somewhat on the internet and found something similar to what I have…it’s called Retrocalcaneal Bursitis or I could just have a simple bruised heel. Which one is it? I don’t want to make it worse..does this mean I have to stop playing soccer for a while?