If you are experiencing hypos, or false hypos, then you may have similar experiences to me - wobbly, tetchy, shaky, ratty, argumentative... Sound familiar?
False hypos are when the body is used to higher blood glucose levels, and reacts to lower ones by thinking there is a problem, and releasing a cocktail of stress hormones into the bloodstream (think of the wobbliness, raised heartbeat and adrenalin rush after a near accident in a car).
The hormones trigger glucose to be released from the liver, bringing your blood glucose back up to the comfort zone.
A 'true' hypo is when the blood glucose drops under 3.6 (I think), but if your body is used to a BG of 13, then you may well be experiencing hypo symptoms at 5 or even more.
The solution is a bit of a pincer movement; you need to gradually get your body used to lower blood glucose levels. It will then learn not to overreact and dump glucose into your bloodstream. At the same time, it's helpful to keep your BG as steady as possible (no peaks or troughs).
The best way I know of doing that is reducing the amount of bread, rice, potato, cereals, fruit, etc that you eat, because they are the foods that are sending your BG up to 13. If you eat fewer carbs, and more slow release foods like meat, fish, eggs, cheese, non-starchy veg, fats and oils, you will find you BG stabilises.
Your profile says you are type 2 on oral meds. Is that metformin, or Gliclazide? Or something else? Sometimes when people get control of their blood glucose by diet and carb reduction, they need to discuss reducing their medication with their doctor.
Some people even manage to come off their meds altogether.