Hi Jools, welcome to the forum 🙂
Sorry to hear of all your recent misfortunes. The good news is that, now you have been diagnosed you can start to work at improving your health. Once you start to get ytour levels under control you will feel so much better. A lot of people report side effects with the drugs you are taking, particularly metformin, but hopefully these will fade in a short while.
Try not to get too stressed with the job search, and give yourself time to get to grips with the diabetes. There are some good book recommendations on the forum, so check them out in the 'Recommended Books' section.
Do please ask any questions you may have in the General Messageboard!