H.R.
If she isn't cranky while she is teething then that might not be the problem. Especially if you've already tried tylenol and that didn't seem to do anything. I would take a little sugar and dip the nipple in it then give to her, only do this a couple of times ( You don't want to get her thinking she gets it all the time). But this might incourage her to eat more. But most children do go through a phase of slowing down with eating and this just might be her time. She isn't going to starve herself, kids just eat when they want to eat. Just take is slow and if you think that she still isn't eating enough ask your doctor about it. As long as she is healthy then you shouldn't have too much to worrie about.