Hi
@Angiec66, and welcome to the forum.
Sorry to hear about your problems and we will do what we can to help you out. Many of our members have been where you are now and have got things under control so read around and see how they went about it. One thing you will find is there is no magic, fits everybody, method. We are all different and we all find the way which suits us.
Losing some of the weight you have put will almost certainly be a good thing. Easier said than done, but if you read around you will find that many have gone down the low carbohydrate route with success. Maybe that would suit you, and it has the added benefit of helping to control blood glucose.
Do you know what your HbA1c result was? That is the blood test which will have led to your diagnosis. It will tell you where you are on the diabetic spectrum, and so the length of the journey in front of you. How much weight are you looking to lose?
The stomach problems could well be due to the metformin (it is well known for it) and for most it subsides after a short period. If it does not, then go back to your GP, there are other medications to try.
Ask questions, nothing is considered too silly on here!