BBL AFTER A YEAR - i am having pain on my left side of my ass.. where the fat was stored! What does that mean?

Thank you so much for sharing with us your concern.
Pain after a year of your surgery is not normal. Without a proper examination we cannot tell you what could be the problem. Contact your Board Certified Plastic Surgeon and let him/her know your concern and he/she can determinate what is the problem and also provide you a resolution. 
Best of luck,
Dr. Quiroz! 

Dear jennaugo1,
I understand your concern. However, without a proper assessment it would be difficult to determine what is wrong. It is best that you visit your plastic surgeon for further assessment. Only after thorough examination you can get proper recommendations and advice.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery