Hi merlinkit, welcome to the forum 🙂 Sorry to hear you are feeling unwell. It may or may not be related to the diabetes - how long have you been feeling like this? Is there another doctor at the practice you can see? Normally, when a doctor is away, there will be a locum doctor you can see instead, or alternatively is there a walk-in centre you can go to? Alternatively, you might like to call NHS Direct for advice on 0845 4647. We are not medically-trained so cannot give medical advice.
How have you been going since your diagnosis, is your blood sugar control normally good? Are you on any medication? Please feel free to ask any questions you may have and we will try to help 🙂