Red, I knew that I had crossed the line when I woke at 3:00 am every morning with a racing heart and terrible anxiety. That little tremor in my hand when I reached for a cup of coffee or the mouse to my computer screen was also a warning sign that I was experiencing a little more than a hangover. Looking a little too anticipatory-like to my evening drink was also a warning sign.
If you look more closely to your symptoms and behaviors, you may see some clear signs of addictions. They are subtle at first.