Well, after a week of the medication I finally feel almost 100% again now - apart from the occassional cough I still have, but another check up on Wednesday should see that off.
It looks like I actually had Bacterial Pneumonia...
...possibly from the chicken coop - from the pellet feed dust, the hay dust and all the poop dust (sorry) that I kick up - god knows how the chickens are!
So that is yet another job I have to sort out - clean and possibly rebuild the inside of the coop so it's a bit easier to clean.
Personally I'm ok - I'll wear a dust mask when I collect the eggs from now on!
At least I won't run out of jobs....