You have seen your doctor and had all the tests.
They are all normal
There is no reason for carrying all that weight around your middle.
You know you eat healthily. You even exercise and that makes no difference. You feel your doctor does not believe you.
You know he or she is wrong. What is going on?
You have probably got something called insulin resistance.
It stops you using your food for energy in the normal way and converts the sugars in the food you eat to fat on your body.
It also stops you losing weight.
What can you do?
Eat food that does not cause your insulin to go up as much.
What food is that?
Meat, fish, chicken , eggs, high fat dairy, and vegetables
See www.fatismyfriend.co.uk or www.dietdoctor.com for recipes.
I recommend gradually cutting down your carb intake to about 30g a day until you are better, and increasing it slowly again if you get too thin. It can take you a few months but once you understand you can keep going for ever. Look how this man did it.
How do you work out your carbs?
You can buy a carb counting book or an app for your smartphone to work out the carbs.You could also do a programme like Grain Brain by Dr David Perlmutter where he teaches you a very low carb way of eating.
Broadly which foods do I need to avoid?
Cakes, biscuits, sweets, sugar, bread, cereals, pizza, pies, even fruit.
What if that does not work?
Try intermittent fasting. In its simplest form it means having only one or two meals a day.