Has anyone got any more off the wall suggestions what this might be? 3yo has proper bags under her eyes, they make her look exhausted. But she sleeps and eats well and isn't overly tired. I've been to the GP and she's had a blood test and its negative for iron deficiency, coeliac, thyroid etc, she's healthy. The GP is confident its not an allergy of any sort as she has no other symptoms (and I agree, no eczema or bad nappies etc). I was wondering about sinus issues but the GP said that's unlikely as again, no other symptoms.
It might just be the way she looks, but is there anything unusual I might be missing?