hi welcome
Metformin wouldn't normally cause dizziness the tummy is the normal complaint with met, im not medical so this is all just opinion, the basic gist of low carbing is..... when you eat carbohydrates they turn into glucose in the body (or sugar) when your sugar get really high or really low it has horrible effects on the body therefore by eating lots of carbs that means you ate lots of sugar that means your glucose levels are high that means you feel like ****. simples, as the merecats would say
now the tricky part is that different foods contain different amounts of carbs and you have to teach yourself what has what in it, the obvious culprits are bread rice pasta and potatoes, this is a huge portion of most peoples diet so this means that when you first approach low carb it seems like you cant eat anything but this is not the case, once you learn about the foods you will discover that in fact there are many foods in our armoury to keep us alive, but yes it isn't easy and to make things worse some foods effect some people worse than others for example someone could be ok eating wholegrain bread where as the next person will get elevated glucose levels just by walking down the street past the bakery (joking) so the only way to find out which foods effect him is to test bloods before eating then 2 hours later, the 2 hour thing is to see how hes body is dealing with what he ate and therefore gives you a clue as to what he can get away with and what he cant, this takes a little time so you will have to be patient but it does become easier because we tend to repeat what we eat so eventually you will just know to avoid certain foods, to begin with try to avoid heavily processed foods or high GI as they tend to be simple carbohydrate laden, instead opt for complex carbohydrate or low GI foods like wholegrain bread instead of white, new potatoes, brown rice and pasta, sugar of course, but there are a zillion foods too many to list here all with varying amounts of carbs youll have to read, you will be surprised that
things like fruit that is good for everyone....no its not its very sweet, and for me for example I only eat fruit that ends in berrie because the rest is too carby, but its very complex a subject, there are many here will suggest a moderate carb diet with reduced portion control is the way forward, only you guys can decide but until you get hes bgs stable avoiding carbs (or sugar, same thing) is a good idea, also losing some weight for heavy people and exercise is a very useful tool which isn't always welcome
and not everyone can exercise so all in all diabetes sucks but it is what it is, we have to learn to live with it and in time it will I promise get easier and less overwhelming, you will be forced into a healthier life style which is what we should all be doing anyway
on saying all that im not medical and don't know the ins and outs of hes pancreas condition so this is just what I would do
we have all been where you are now and any questions I haven't answered or that crop up we will try our best to answer
best wishes
Andy