7 signs your body could be sensitive to coffee

You're Restless In Bed At Night

While others need coffee in order to feel peppy, even a few sips of coffee can cause you to feel a little too peppy. For example, "caffeine can exacerbate restless leg syndrome," says Gaffney. "The urge to move the legs as well spontaneous jerking leg movements accompanying this syndrome are increased." This normally happens when you're lying in bed at night, and can even happen hours after drinking coffee.