It appears that Sue my wife has a problem with an inflamed thyroid gland, which only came to light as she finished & graduated from c25k. She got over a cold & chest infection some weeks beforehand, but then a cough returned as she would start to run, and messed up a number of Parkrun's and running in general.
She's OK on fast walking or her dancercise class, just when starting to run, presume because under more exersion. So, went to our doctor who found a swelling in her neck, which she knew nothing about, anyway a scan and specialist (endocrinologist) check has confirmed an inflamed thyroid, which he says is about the size of a satsuma and could have been growing for about 30 years!
Anyway it's pushing over her windpipe, but wether that's the cause of her coughing he's not sure yet that the coughing isn't down to a running induced type of asthma that's come on. He ensured her that the thyroid condition is very common and that the chances of it being anything sinister are very low, so the tests are ongoing. Of course we've been very concerned about this, but feeling better after seeing the specialist this morning, but she's so dissapointed about not running, we are getting out doing some good walking instead, so at the moment I'm a lone runner again!😔