I really think this would make for a really tense dynamic. You’re out harvesting and suddenly you hear the Crack of a rifle and see your HP drop and the notification that you’re bleeding flashes. You dive for cover leaving a trail of blood and desperately hit the key for bandages. Its too late though, you’ve left a big red arrow pointing your way.
For usefulness it might have to leave a trail for like like 15-30 seconds even after you bandage. Right now I feel like it’s a little too easy to escape when someone hunting you. Duck into a hill and you’re basically golden unless there’s a couple of people coordinating to find you and even then I feel like it’s easy to escape or double back and retaliate.
Perhaps having a hard to detect trail that lasts a long time and darkens as it ages (making it harder to see) would also enhance the realism factor.