I had that problem with the feeling of a lump in my throat after I finished chemo and radiation. It turned out that I had a thyroid problems - a goiter - and it was pushing inward against my esophogus and trachea. I also had problems breathing when I would turn my head a certain way. My surgeon said thyroid problems are not unusual after chemo. I had surgery to remove most of my thyroid (not cancerous) and I no longer have problems choking, breathing and feeling like there is a lump in my throat all of the time. If you haven't had your thyroid checked, it may be worthwhile to do so.
I TOO HAVE HAD LONG TERM EFFECTS BUT FROM CHEMO WHICH I TOOK IN MARCH 1992 FOR BREAST CANCER. THE EFFECTS HAVE BEEN STRONGER THE PAST 6 YEARS THAN AT THE BEGINNING.
It would be highly unlikely that radiation would have affected your esophagus, unless there had been a need for very unusual targeting. Likewise, it's not common that chemo would leave you permanently short of breath. One possibility is that you have reflux, which can cause both a stricture in the esophagus, and, if severe, lung problems from chronic aspiration. In any case, a clear answer needs to be found, because neither situation is good, whatever the cause. So it ought to be pursued with your internist until both situations are clearly understood.
Dear Bowling Granny, When radiation therapy is given for breast cancer all attempts are made to shield vital organs such as the lungs and heart. However, there is a possibility that an area was within the radiation field and could be damaged. Regarding chemotherapy, the body's mechanism for eliminating waste products particularly drugs is either by way of the liver and/or the kidneys, not the lungs. The chemotherapy medications that are usually given for breast cancer do not have lung toxicity as a long term side effect.
Your symptoms would need to be evaluated in context of physical exam, as well as your medical history. An internist would be a good professional to start with to help to direct the evaluation of your symptoms.