hi, as mentioned by you, about the swollen or lumo area, and also examined by doctor where he said it s nothing to worry. ofcourse I agree to you that how come something comes up like this and is painful. And also how come the swelling is persisting. what I would suggest is to undergo an x-ray and check as it may reveal something with it. May be a fluid accumulation. Also later on an MRI will guide to see what soft tisses are involved in that area leading to swelling. Until we get a picture of the soft tissue abnormality it will be really tough for anyone to examine and comment. As diagnostic holds the strong ground for assistance. I wish you get an MRI done so we can come to know what sort of soft tissue is involved a muscular or a lung tissue. With the grace of God I wish you a speedy recovery regards Jay Indravadan Patel