High BG during injuries

Hello all,
I am getting kinda worried about my BG levels staying up since I got injuried at work. I tore my right rotator cuff on the 15th of this month and have noted an increase in my BG levels. What is normally in the 120 has now gone as high as 224 and no lower than 170. Could this be because of the injury? I have not changed my eating habits or what I eat. It is very concerning to me. Please someone give me some help in this matter

It's not unusual for injuries to cause stress and raise BG. If they rx steroids that can also cause a rise?