I think it exists, but it's not the same as being sore or getting injured. In most 'overtraining" cases, I'd blame the implementation of training (form, etc.) and recovery (12 hour shifts at work, inadequate nutrition, drinking, etc.).
If EVERYTHING else is in check, and you've been overreaching for a while, you could end up overtraining, but you wouldn't be just sore, it's a lot more intense and is more like depression or being sick, lack of will to get out of bed, etc.
If EVERYTHING else is in check, and you've been overreaching for a while, you could end up overtraining, but you wouldn't be just sore, it's a lot more intense and is more like depression or being sick, lack of will to get out of bed, etc.