So for while I have been feel very tired from morning to night I have tried many things but still tired could this be diabetes?

I have been struggling for a while and I have Mental illness I am overweight but I tend to eat for pleasure but nothing I have tried recently helps and vicious cycle to exercise you need energy to get energy you need to exercise anyway I am planning on getting blood tests I am wondering whether I have diabetes any ideas
So for while I have been feel very tired from morning to night I have tried many things but still tired could this be diabetes?
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