this is bit an exploration as I have been testing myself on General periodic medical checkup for the last 15 and more years..
the first indication was fatty liver and then drop in its functioning or efficiency
perhaps this was facilitated as I shifted from site work to office work and also curtailing sports activity and not reducing food intake or not going for choices of food... even before this entered into gas problems, perhaps first indication of system discomforts or metabolism (as more gas is produced or not absorbed)... I think I had gone upto 85Kgs for 167CMs at age of 45, I was with sugar 120 to 140 levels and responded well to doctors advice went for good scheme of brisk walking, exercise, dieting and reduced sugar levels and body weight, but could not sustain due to loss of interest and simply eating..
I had earlier made a thesis(informal)," sugar is sweeter to us, because it is dearer to us", now it has become so dearer and bitter, at age of 58, with more sugar head goes heavy and paining and less sugar heart goes bouncing... these are my two indicators of levels, most of the times work well; sometimes, you get both indicator active, perhaps with some time lag, the confirmatory test is feeling of hungry on low sugar.. I think I am able to manage my sugar levels...
I shall also share a condition that after getting the low sugar level sign and if I continue not taking food for another 30minutes, I reach a stable state, some transformation or system adjustment takes place..
If I had a good motion(stools) with out gas interruption that is an indication that I had good food (diabetic friendly) the previous day... if I take more sugar or oil, I will have motion problems..
now, body also got tuned to drinking tea without sugar which tastes heavenly than with sugar (which gives a feeling of saturation at tongue level..
I shall also share the flowering like experience when it comes to sugar... I just dropped one sugar particle on my tongue and took my attention to what happens... the buds opened, the sugar particles dropped into it assisted by saliva
but after becoming diabetic, somehow, I have developed a notion that diabetic pathways could be reversible....
now a days I am not fond of exercise, doctor infact fore-warned me that I can not control my diabetic through exercises after over eating... I have to control my eating, do few flexible exercises and take few medicine, let us see what happens...
sugar which was sweeter has become now bitter! Sugar has become and remain dearer now, yet in another sense!