Hi Fiona,
The best idea with diabetes is to eat at least three times a day even if you do not eat a lot at each meal. This keeps your blood sugars more even during the day especially if you do exercise a lot as your tend to ' liver dump' .
The first thing is to try and reduce your carbohydrate intake a bit, Bread ,potatoes, pasta and rice and all flour based products are starchy carbs which convert 100% into glucose in the body.
Try and cut these down to start with and see what affect this has on your blood sugar levels.
Keep a food diary for a week and record the food you eat,the blood sugar level before the meal and two hours after you have eaten. This will show you what effect the foods that you are eating is having on your blood sugar levels.
Get yourself a carb counter book and work out just how many carbs you are eating. Aim to get down to 100gm per day to start with. Then, if you can, reduce this a bit further until your blood sugar levels are down to at least the NICE guidelines or even lower if you can.
As a T2 the NICE 2009 guidelines for a Diabetic are as follows:
Fasting (waking) ................between 4 - 7 mmol/l.
2 hrs after meals................no more than 8.5 mmol/l.
I know it sounds daunting but, taken step by step, it is possible to reduce your levels and this will help with many of the other problems you have as well.