Hi,
>>
Dark circles under eyes for kids are sign of over exposure to sun and
dehydration. So you did a great job giving her electrolyte.
>> Feeling faint and skin pallor (pale skin) can be caused by a number of conditions including dehydration,
heat exhaustion, and anemia.
Advice - Have her
Hemoglobin checked at her pediatrician's office.
>> Middle back pain may be caused by: Overuse,
muscle strain, or injury to the muscles, ligaments, and discs that support your spine.
Advice - I will not be much concerned unless I see some injury marks or child does complain for the same after 2 days. Try giving he some over the counter pain medication age suitable doses ( Tylenol / ibuprofen) and see it the pain subsides. For any visible injury marks please attain them as needed or have them checked by physician if you feel worrisome.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Jay Patel, General & Family Physician