She's five-six months, right? Teething, no doubt. Try the orajels (but don't be shocked if they don't work; my son never liked them.) You can also buy those teething rings that go in the fridge or the freezer, and my son LOVED those. They do warm up really fast, though, so if they work, buy a few and rotate. You can also try soaking a washcloth in cold water and letting her chew on that. Hyland's used to make teething tablets, and they were fantastic, but they've been pulled from the market for a while. (Issues with dosage. Long story.) They're supposed to be back on the market sometime this summer, so if you see them, I highly recommend them; they worked on my son like awesome. Worst case: Tylenol, no joke. I understand that teething is one of the worst pains you can experience, next to childbirth (although how they figure that, since the ones experiencing it are too young to judge, I have no idea). You are NOT a bad mom for dosing your kid with pain-killer, if she's in pain.