It is good to know about your concern of
weight management. You are on a low
carbohydrate diet due to which it was possible to control it. But sudden weight gain without any changes in diet or life style is a cause for concern. Get
thyroid profile done and if any abnormalities detected be treated accordingly. Taking nuts and bread as told by you is normal. See to it for following factors
1. Check your overall diet if it contains high calories. Avoid high calories diet.
2. Increase your workout.
3. Swimming is very helpful to maintain weight.
4. Take low carbohydrate,low fat and high protein diet.
5. Get thyroid profile and
lipid profile done. Should try to maintain in normal range.
Watch out for three months and contact again for the future course of action.
One more thing, there are some Ayurvedic medicine for it also which I prescribe in my clinic. These are very much safe and tried with many patients with out any side effects.