what you are describing about the higher than normal spikes is typically RH.
that is your first phase insulin response. Mine is wesk, not enough insulin, the imbalance causes the spike, and any carbs will do it! If you are happier snacking little bites all day, that is how you control the spikes and hypoglycaemia. If you can't fast, what else is there? Though you naturally fast overnight. It is so hard!
You have to be careful with drugs and how they effect you. Meds contain ingredients that you may be susceptible to. Containing sugars, to make you feel better (sure!) That will make is RH ers worse.
You will really have to make sure, what you eat and drink is not going to cause a spike or a hypo.
Take care.