Hi mate , my dad has plearal mesothelioma, he was exposed to asbestos for only a few weeks , but he thinks it was in 1968. Most coutries made it illegal to work with in 1979. I think a PET scan would be the safest option, as it is very treatable if found early. I met a man yesturday who has it and is only 45.
Dony want to alarm you but better safe than sorry.
All the best