<s>[INST] My ten year old daughter passed out for a few seconds last week I took her to her doctor and he said she could be dehydrated but did not test anything he just took her pulse and listened to her heart and she did not have a fever. Today I took her to the daughter because her pierced earring hole is infected. We now have an antibiotic for that. I am still worried about her passing out and she has been complaining of a stomachache and backache. Should I take her to the emergency room if she faints again or to get some blood tests? [/INST] Hi there, I understand your concern, and I agree that if she has repeated episodes of passing out/fainting, that she should have it investigated.  The most common things that we have to rule out are heart and rhythm problems, which is why the doctor checked that first when he examined her.  I usually do not proceed much further myself with a single episode of fainting, because it is not uncommon, especially if triggered by things like deny Chat Doctor. However, if there are recurrent episodes, then we need to be sure that there are no other problems.  This is especially so if they are what we call spontaneous episodes, which means that there was no trigger - she was completely well, eating and  </s>