Any advice that we give is based on the information you have given us. You should always follow advice you have been given by a health professional.
While you don’t currently have a long term health problem it is important that you take action to reduce your future risk of health problems. As you have said you have lost weight over the last year it looks like you have already started.
As you have lost weight many times before and put most of it back on we would recommend that you access more specialist help. Follow this link to information on services that are available or speak to your GP or practice nurse.