Hi everyone, sorry for the delayed reply, been working late, many thanks to you all for your advice and support. It means a lot to know that others have gone through similar things!
That would be a big NO, in my case it's been traced back to being most likely chemical reaction to medication, leading to an infection caused by an initial reaction to an anti-fungal combination in tablet and cream form, several years ago, and a second and more recent catastrophic event possibly brought on by some heavy lifting.
Unless bilateral orchidectomy surgery and Testosterone replacement therapy is a treatment for thyroid issues, in the meantime I'll trust my urology and endocrinology consultants on this one, alongside the barrage of blood tests that has been done in the past 4 months.
Without proper testing its wrong to just take a stab at a labelling and second guessing a condition, hunches are fine but investigations and testing is much sounder approach.