Any advice that we give is based on the information you have provided. You should always follow advice you have been given by a health professional.
As you have a long term health problem, the priority for you is to stop gaining any more weight.
Once your weight has been steady for a while you may find it helpful to think about losing some weight.
We suggest you start with the MAINTAIN section of the website. This gives advice on how to deal with the normal changes in weight that happen to us all from time to time.