Energy limitation cause me to reset level a lot of time because of wrong input or bad jump. But maybe could you add the limit as an optional challenge?
You added specifics sound like car accident and ambulance, also we see a burning car, it's self explanatory from my point of view, also at the end we hear hospital bip, so we understand we are in coma. But if you are not sure player can understand, you can still let the main character talk, but maybe more evasive?