chamomile tea

Has anyone heard of giving your baby a small amount of chamomile tea ? It is supposed to help with belly aches and fighting sleep ... I researched it as best as I could because my little one was fighting sleep ... she would be up for hours and fall asleep and jerk herself awake.  I gave her a teaspoon of the tea and it's been a miricale for us. Now I know if you are breastfeeding you can drink the tea itself and have the same effect but I am not. Don't yell at me , I'm not forcing anyone into doing it , I'm not a doctor , it's just something I stumbled on and it worked for us. My pediatrician told me the biggest risk is just not knowing if they will be Allergic but the chance of anyone being allergic to chamomile is slim.  It's no different than the stuff that's in gripe water , all natural. My baby doesn't even have gas anymore and she was getting belly aches pretty regularly. Has anyone else heard of this ?