Has your doctor also checked you for an underactive thyroid, and for your Vitamin D levels?
Vitamin D is much more important than was previously realised, and one of the deficiency symptoms is great tiredness and a general "low" feeling. Similarly with underactive thyroid - I have never had a reading outside the "normal" range, but my GP listens, and treated the symptoms (see ThyroidUK website). Now I take 100mg (mcg?) of Levothyroxine daily, and I feel much better.
At the latitude we live, only people who work outside get anywhere near enough Vit D from sunshine between about October and March; also, as we get older, so we get less efficient in making it (Vit D is made by the action of sunlight on the cholesterol under your skin). It isn't really possible to get enough through dietary sources alone, though eggs and oily fish are good sources.
Discuss both thyroid problems and Vitamin D with your GP. If they won't give you a blood test for it (they are expensive) it's worth trying a supplement anyway, I think. Have a good search round on Google and look for the summaries of research papers. I did (though stupidly I have lost my best links) and I now take 2400 IU (international units) every day in summer, and 4800IU every day in winter. Vitamin D3 is the one you want, and it is available on ebay and Amazon.
I also use a SAD lamp in winter. Seasonal Affective Disorder - for when winter gets you really down and you get to this time of year feeling
awful.
Having said all that - I am not qualified to give you advice and can only speak from my own experience. Do your own reading round, and also speak to your doctor. I've been much better since taking my Vit D3 supplement. They wouldn't give me a blood test at first, but the nurse and I eventually managed to sneak one past "them" - last February my Vit D was slightly above the given range, which I was very happy about!
IMHO, the NHS-issue supplements don't contain enough - we are able to handle much more that was previously thought.
Good luck with all this. If you are feeling really down it will have a knock-on effect to how you feel about coping with your diabetes. Try not to worry, and hang on in there - one day we will have some warm sunshine and everything will be good again!
We have warm sunshine here at the moment - at least, I hope it's warm enough to melt the 2 inches of snow that fell overnight! :lol:
Let us kow how you get on
Viv 8)