What you're describing is a little puzzling, since adrenaline usually eases pain, it doesn't make it worse or provoke it. Adrenaline is designed to help you cope better with stress and danger, so what it does is actually make you feel better, more powerful, speedier, more alert, and decreases your ability to feel pain.
How Long Does It Take Aloe Vera to Grow? Aloe vera plant grows within 2 to 3 weeks of initial planting, enough that you begin to see the growth. In the early stages of aloe vera plant growth, use your watering can to keep the soil moist, but be sure to be moderate.
When you are going to remove a leaf to use from the Aloe Vera the best thing to do is use a sharp knife and cut it at the base of the leaf -- where the soil line meets the leaf. To store it, after you've used it, you can put it in a sandwich bag, wrap in foil and put in the fridge that way. It will last 4-5 days.