A couple of questions for you....

-When you have the hood all the way open can you push back on the hood (up and back toward the windshield) and feel some sloppy movement? This is hard to explain but the hood should feel tight like it is resisting you with no movement. If you have movement that is more like an up and down and/or front to back then the hood hinges are probably worn. This is not a side to side (left to right) movement.

-When the hood is down and locked in place can you grab the back part of the hood (by the windshield) and lift it up or push it down? If so, again the hood hinges are probably worn.

My hood hinges are worn and they have the symptoms outlined in the questions above. If you suffer from these same symptoms then yours might be worn too. I can't say 100% for sure but I'm sharing what my hinges do and I know they are worn.