I know I am probably being totally paranoid, pfb and all that. But my dd has been sick several times (she has very rarely been sick since she was born - probably more sick in the last few days than in all of the last 6 mths) but only in the evening of the last 3 days and I can't decide why. She is a little over 6mths so this may be teething related but no sign of actual teeth yet. Should I be worried or not?