I had it also and took ibuprofen which helped enormously. you can look it up under
www.mayoclinic.com - that's where I found that ibuprofen would help. The cardiologist said he just see me in a month to see whether it was bigger or not! but I decided the pain was too much and thanks to this site and the Mayo site, I took the ibuprofen and it went away. Mine happened soon after I stopped Taxol but was still on Herceptin and Femara. I still have shortness of breath but that's due to a fibroid in my lung due to radiation. If it's ok for Kiri to take ibuprofen, I'd suggest she try that.
hugs and love sarah