Not bad mate! Close but no prize!
Blood glucose is high because of a weakened primary insulin response. The second insulin response is called the overshoot. This drives down blood glucose into Hypoglycaemia. And yes, if you treat the hypo as would a diabetic, the outcome would be termed as a rebound effect, and the hyper/hypo cycle would continue.
Unless there was something wrong with your monitor, anything in that range is an episode of hypoglycaemia. And needs to be treated.
RH is non diabetic, and fasting glucose levels are always in normal range and so are Hba1c levels., you're eating regularly is usually the recommended dietary advice and to eat every three hours. This so because then you can eat carbs. But with RH, it doesn't stop the huge amount of hormones that are useless for many reasons, if you have too much circulating insulin, you will have hyperinsulinaemia and serious symptoms.
You may be as a T2, be carb intolerant, like me, and it is the carbs that are making you ill!
Once you start with carbs, once you are awake, the rollercoaster ride of glucose levels is causing the symptoms. The best thing I can help you with is my experience, and being in control, being in normal glucose levels, all the time. Remember no spikes, no hypos. Also no excess insulin and the symptoms start to wane.