Consistent back or lung pain??

Has anyone ever had a pain on the right middle back area. But not like a crises more like something has gotten worse over Time. I think its my lung it feel likes it sore or swollen. When I make certain movements or put pressure on my back by sitting or laying down it’s more present and it’s been around for like 6+ months. I first I thought it was bad posture or something but I don’t think that’s what it is. Any insights?