Hi plantbabe, welcome to dLife!
There could be any number of reasons for being tired. If you give us a little more information someone here may be able to help you.
When were you diagnosed (and what type)? How well controlled is your BG?
I find that I'm tired if my BG is running too high. Depression can be another cause. Incidents of depression are high in diabetics.
When I can't seem to get my engine revved I make myself get dressed and go for a walk. It doesn't have to be a long one, just getting moving can get you jump started. Besides, 30 minutes a day will
really help your BG levels
Sue