November 2016 mummies I need advice

Amy
Evening all, 
My little one was born via c-section in November and for the last week I have been having a really bad pain/ache in my tail bone. It's when I stand up and sit down, it is driving me bloody crazy. No pain relief is helping and I look like an 80 year old when I try and stand up. Is anyone else experiencing this, and is anything helping? 
Thank you