Lump On Back More Condition_symptoms I Have This Lump On My Lower Back Next To My Spine?

I have this lump on my lower back next to my spine? - lump on back more condition_symptoms

I ad-world, but it feels like a lump in my lower back near my spine. I went to the masseuse and massage OT have tried it does not work. They believe it is a node, and then some. But I'm afraid to get it looked at. Could a lump or something else? If the RN, which I could answer that question would be great. Thank you!
By the way not visible to the eye. You should really feel for them.