Should I be applying for PIP?

hi everyone, lovely to see how many people are happy to give advice to people in need.
I am one of these! so, after years of pain in my neck and back,I was eventually sent for an MRI scan on my back and neck, both came back with ddd. I've just had a 2nd one on my neck which has came back much worse,and an waiting for a 2nd one on my lumber back next week.I am in constant pain with my neck, headaches,hand arm finger pain, foot leg back pain, sciatica, I have also, a year ago been diagnosed with fibromyalgia,. I work 28 hours a week, although I do struggle  a bit, I do enjoy it so don't want to leave, but my friend keeps telling me to apply for pip.Can someone please tell me if this is something I could apply for?