Hi Little wolf. Don't know if they are really reactive hypos or not. First of all what did you eat, and how high did you go at how long after the meal. Next, how low did you go, how long after the high?
The SD codefree can show a slightly elevated reading, only by a couple of points. So, your fasting of 5.1mmol is fine. If you then had breakfast, depending on how many carbs you had, and it sent you to what? 8 ? after 1 hour ? but then you came back down to 4 ? 5? after another hour or so, then I would say that you dealt with the breakfast. If I have two slices of toast it would give me about 12 (this is not acceptable, so I don 't have that) so I usually have 1 full fat greek yoghurt which is about 5g carb which would take me up by about 1.5mmol, with a return to starting point or lower after a couple of hours.
That spike I had, caused by a big liver dump, a few days ago, I went to 9.3 ( hadn't eaten anything ) was back down to 5.0, 50 mins later . I would not call that a reactive hypo. It would have been fine to drop even further. Normally my liver dumps at anything below 4 ish. Its fairly normal to be as low as high 2s or low 3s before your liver dumps. The level it responds is usually governed by the level of BGs that your body has got used to, therefore its usually at a much higher level in diabetics because their bodies have got used to having a higher concentration of sugar in their blood. All the time that you are not on meds e.g. insulin stimulating drugs, or insulin, then there is no danger from a hypo as your liver will pump out a bit of (sugar) into the blood when it feels that you are low enough to warrant it .So , assuming that your liver is working, it shouldn't be any danger all.
When you had your breakfast, did you go very high afterwards, and how low did you go, after what period of time. Its quite possible that you dropped very quickly and although you were not really low, it may have made you feel a bit wobbly. Carbs can cause this, this is why its often best for diabetics to restrict their carbs because for many people it causes a sudden rise in bgs and a very sudden fall, leaving them feeling sick, wobbly, and also hungry, so its very easy to feel that you then need to take just a wee bit of sugar or food to counteract it, when really it is not actually necessary to do so.
I know you have said it is difficult for you to eat properly because of family, but I do feel that you might benefit from being on a fairly restricted carb diet, not NO carbs, just an even small amount with each meal throughout the day, to see if it helps in achieving a smoother flow with your control, hopefully eliminating some of the dreadful spikes which are not good. The amount of carbs that we can tolerate varies greatly from person to person, so you would need to experiment. Also, I believe that if you are LADA as the pancreas starts to fail, then you will get an uneven supply of insulin anyway , making it more difficult.