Susannah

Don't worry too much about dark circles if that is the only symptom you have. I've had them my whole life, and I've talked to doctors, and they say it only means my skin is thin there. I've looked online, and the only thing that I can find that it means is that my veins are a little more suscepible to breaking open (makes sense, I also bruise fairly easily). I've found things that say that adding extra vitamin K, vitamin C, and bioflavinoids might help. The vitamin C I take (I'm up to 10 grams/day), doesn't seem to do much for the dark circles (even though it does keep me from getting sick). The vitamin K I started taking after I had my daughter (not supposed to take it while pregnant) seems to help some. I'm going to start with the bioflavinoids soon. The doctors were really useless, just told me to use concealer. If you are rubbing under your eye more, it will make it worse, because it will cause more of those blood vessels to break.

Some of the other symptoms of liver damage are tiredness, loss of appetite, nausea, nail changes. However, early liver damage doesn't usually have many symptoms at all. I really doubt that's what it is, though, at your age.

One of the symptoms of kidney damage early on is also tiredness.

Oh, one more thing. If you really are worried about your liver, there is an herb called milk thistle which is inexpensive, and really good at preventing and healing liver damage. There aren't any side effects from it.