It's hard to say just on the surface. I would say that your symptoms could be consistent with hypoglycemia. But they also could be something else.
For me it was hunger all the time, being tired all the time, being hungry even after eating a filling meal (I used to eat more than my husband all the time. He couldn't believe it!), craving for certain foods - often sweets but I didn't actually have that, insomnia, migraines, being irritable for seemingly no reason, etc etc etc. There are many sites about it on the net, I can't recommend any one in particular but you can get the idea by looking at them.
I was diagnosed by an accupunctrist who was treating me for a dog bite. (totally unrelated). I had been in my life diagnosed as bipolar and was treated very unsuccessfully for that for a few years. Also Depression
and anxiety are common diagnoses.
I initially switched to a low carb diet and found my symptoms got much better. Also I was less hungry and slept much better. Since then I have switched to a diet that follows the glycemic index and eat lots of veggies and am beginning to eat more fruit. I did go out and buy a blood glucose moniter like diabetics use and kept track and saw that my blood Sugar
would drop down below my starting reading at around 2.5 hours. That is considered enough for some docs, though you will be lucky to find a doc that recognizes this as a genuine condition. Normal blood Sugar
readings are usually considered between 70-110. I often would be in the 60's and have dropped into the 50's and 40's a few times.
Getting your blood glucose tested at a doctor during a lab test will not likely tell you much. Also, there is a test they can run, called a Glucose Tolerance Test that can tell you a lot about your blood Sugar
and if you are hypo or diabetic or not but they often aren't read right or samples taken often enough, and they can be a very uncomfortable experience. I haven't done one at the doctor's office but I have conducted my own with a blood glucose moniter and proved it to myself.
I believe there is a section on here somewhere about hypo and I have gotten a lot of info from the hypo groups on yahoo groups, for starters.
I hope some of this helps.