hi everyone, anyone out there having long term side effects of radiation on the chest area?

i was 20 when diagnosed with hodgkin's lymphoma in my chest. i was given the max amount of chemotherapy allowed which did not sort it out followed by a month of radiation therapy which thankfully banished it.

im here 10 years later and thankful for every day im given with my 4 children. 

i have stuck to my occupation as a bricklayer but recently having bouts of breathlessness in cold weather and cold virus  knocks me down. 

thanks in advance