When you have injured yourself, you should get it checked out by your doctor. They can determine the seriousness of your injury. Playing hockey after even a slight concussion can cause your reaction time to be slightly changed and increase your risk of injuring yourself. Any injury can cause you to alter your play and increase your risk of injuring yourself more.
Your physical therapist can help get you back to your pre-injured self by strengthening,
stretching, balance
re-training or whatever treatment is neccessary.