I was diagnosed with Type 2 3 years ago. So far I have managed to stay off medication. I am really struggling to lose weight as I have an underactive thyroid. My medication for this is reviewed frequently I am not hugely heavy - 10stone 6lbs and 5'4". I have now been told I will probably have to start taking metformin soon. What more can I do to avoid this? I have a very healthy diet, with low carbohydrate. For example I know that my thyroid must be out of kilter again as I have put on 4lbs in the last 2 weeks, and my diet has not changed. Is anyone else in this position?