The first thing would be to lower your carbohydrate intake. If you have cereal and toast for breakfast cut that out and have something like an egg or two, some bacon, mushrooms and a tomato and do not be afraid to fry them but in butter or the bacon fat. Have a piece of meat or chicken for lunch with some salad, you can make it more substantial by adding some beans to the salad, a couple of small boiled potatoes in their skins would be OK and real mayonnaise dressing. Same for dinner, some meat or poultry with a choice of vegetables. The vegetables that grow above ground are better than those that grow below, although you can add onion, beetroot, celeriac type veg to your meals. It is mainly the grains you should be cutting out. Even the wholemeal ones, which are better, are still very starchy. The fat and fibre just makes them release slower to help avoid spikes. Do not go for products marked low fat as they are usually much higher in carbohydrates. Be more wary of carbohydrates than fats. Shopping is made much easier as you only need to buy from the outside aisles. Try to keep away from manufactured stuff. If it is the diabetes making you feel unwell, if you eat like this for a few days you will start to feel better. Food is not the only reason for blood glucose rising, but it is a big part of it. I think everyone, diabetic or not, should eat a diabetic way, because it is really just good healthy eating. At least for these two weeks when you have no medication keep away from all cakes, pies, confectionery, bought sauces, and also keep away from foods marked for diabetics (although I believe the manufacturers are no longer going to label their foods this way any more), You can have cheese as well. So basically it is meat, poultry, eggs, cheese, bacon, vegetables and salads. If you must have fruit make it raspberries, strawberries or other berries as they have less sugar in them, but keep them down to small portions. Look more to what you can eat rather than what you can't as a positive attitude goes a long way.
If you are given the opportunity of going on an EXPERT course TAKE IT. I cannot emphasise strongly enough how very helpful and useful this course is. After that YOU will be the expert on diabetes. If it is not mentioned, then ask about it. .Be wary of what the dietician tells you. Some are still in the old way of thinking (base meals on carbohydrates) which common sense will tell you must be wrong. After all type 2s are mainly highly insulin resistant. Even type 1's it is now thought should watch their carbohydrates as well.