Hi,
Welcome to HCM. I had gone through your question and understand your concerns.
See the detailed answers
A. Thyroid
Though
hypothyroidism can cause weight gain , the weight gained due to under functioning thyroid will be lost on treatment. So if your thyroid function is normal on Synthyroid 125 mcg, there wont be any further weight reduction with this. Keep the
TSH below 2.5 miu/ml while on treatment
B. Weight reduction
There are only 3 options for weight reduction
1. Lifestyle modifications : Diet and exercise
2. Medications = less useful, Belviq is currently approved medication with highest
weight loss. Still the weight reduction will be less than 5% of your current weight.
3. Surgical -
Bariatric surgery - is currently the most useful treatment for weight reduction. This can reduce your weight by 30-40%.
If the initial 2 options are not working for you, you should opt for
surgical treatment.
Hope I have answered your question. If you have any further questions I will be happy to help.
Regards
Dr Ajish TP
Consultant Endocrinologist