Hi there
@Pan123 and welcome
A lot of questions in there. I’ll do my best to answer them.
1. My blood sugar has lowered to 5 during the day and maybe is about 7/8 when I get up.. is that normal? What should it be?
Those numbers don’t seem at all bad given an HbA1c of 105 as a starting point. Everyone has their own targets, but broadly as a type 2 on metformin or no meds, sticking between 4 and 7 is a decent range.
2. How realistically can I reverse diabetes? Is it even possible? I mentioned that to my doctor.. they did not even want to hear about it!!
Yes it’s possible - although you’ll find debate on here about terminology. I prefer to say well controlled. Many of us have achieved non-diabetic numbers from a starting point similar to you (my own HbA1c on diagnosis was 108. Non diabetic numbers for 3 years now). The key is reducing carbs by as much as you need to keep your blood sugars in check.
3. I heard that if the blood sugar spikes it’s not good? Does anyone know the ranges?
See above - keeping levels as stable as possible is important. There’s a chart somewhere on this website, but I’m not having much luck finding it at the moment.
4. how much weight must I loose to reverse diabetes?
I am trying to loose weight as well and have drop another half a stone.
Weight loss may come, but keeping your blood sugars under control is the most important thing. Many people lose weight as a consequence of dropping carbs, but others don’t. If you’d like inspiration/food ideas take a look at dietdoctor.com
Finally on the metformin, it doesn’t work in the way you’re using it - it takes time to build up in the body and just using it at weekends will likely have no impact. In itself it doesn’t do a lot to directly reduce blood sugars, rather it increases the body’s insulin sensitivity and stops the liver dumping out so much glucose.
Good luck with all of this and keep posting!