welcome to healthcare magic.
Although pain in ribs can be due to so many different causes you should be extra cautious as you are a myeloma survivor.Myeloma bone disease
is very ommon in myeloma patient .Typically myeloma bone pain
is very deep seated ;disturbing and extremely painful.It is also less responsive to typical pain killers.
Please visit your oncologist
to confirm whether it is due to relapse of myeloma or not.If it is due to other causes like mechanical pain there is no need to worry . If you have myeloma bone disease treatments like local radiotherapy or bisphosphonates