Hi all, sorry for asking and not going to the doctor but I am one of those people who feels like a hypochondriac or that I'm wasting the doctor's time if I make an appointment and it turns out to be nothing.
Anyway, I have had this lump maybe for about six months, but yesterday dh said he thought it had got bigger and a slightly darker. It's like a bruise on my skin but it's not painful or tender to touch.
I have pain inside my back/rib area, like a burning sensation and I did go to the doctor with this maybe last summer? I was referred for an MRI and it came back that my pain was muscular as I have scoliosis (leaning to the opposite side of where this bruise type mark has occured)
So because had been through all this and it was only muscular, I am reluctant to go back to the doctor and say the pain is still there and this bruise has appeared.
Has anyone any ideas what this could be or where I could go to research marks like this?
I have covered up as best as I can in the image and the little peach covers my bum crack so as not to offend 
I think the bruise is easy to see but it covers quite a large area and is slightly darker colour than the rest of my skin.
Thanks in advance for reading and any advice will be gratefully received.