Hello!
I read carefully your query and understand your concern.
In the way you describe it seems to be more an viral infection than a specific abdominal condition causing this
abdominal pain,headache,weakness and sleepiness,
lack of appetite .In this case no specific treatment is needed and she will be fine after some days.You can give her Ibuprofen or
Paracetamol to relieve the pain.
I would not exclude that all this symptoms can precede the starting of her periods.
If this symptoms were due to kidney disease she probably will have back pain,
frequent urination,painful urination.But are some kidney disease that can cause vague abdominal pain and a general unwellness and since you have a familiar medical history of kidney disease I suggest to do some tests to exclude this possibility.
You can do a complete blood test,creatinin level and urea level in blood,
urinalysis to exclude a possible infection and an abdominal ultrasound.
I suggest to consult a physician and get the tests done to sort out the right cause.
Hope my answer has helped.
Take care.
Dr.Rovena