Hello, 
Thanks for the query to H.C.M. Forum. 
You mentioned that pain is on the left side, at waist level above 
hip bone. 
This pain is in the abdomen deep seated. 
However there are so many reasons of this pain. 
From how many days, you are feeling this  pain ? 
Is there urine problem ?
Loss of appetite ?
One of the most important point  is that 
LIVER is on the right side so don't concern about that. 
Now you query  is that this pain may be due to kidney trouble? 
I would say not , because in 
kidney pain usually there are burning micturition , blood in urine may be or  may not be.
If stone in the   
urinary tract system than it may be . 
So for this you  have an 
X ray  K  U B ( involves kidney 
ureter, bladder). 
Consult a physician and get in his opinion and deal accordingly. 
However urine examination may reveals some diseases, if any. 
Don't forget about intestine pain, as this  is most common on this side. 
So before any diagnosis assessment is necessary by an expert through physical examination. 
Hope I have answered your question. 
If further any question I will help. 
Good luck. 
Dr. HET