I have had low energy levels and been feeling tired and not been able to sleep for quite a while.  I went to the doctor and he says I am suffering from stress and possibly depression and it wouldn't be related to my blood sugar. 
I think that these are low blood sugar symptoms.  When I pressed the point he suggested I ate pasta every day for 2 weeks and see if it helps.  I'm not sure that will make a difference.
Any suggestions?
 
