Welcome to HCM,
You are known case of Hypothyroidism
, Over weight and keeping high blood pressure
which during pregnancy could be gestational Hypertension/Pre eclampsia.
If your BP is high even now you should consult Internal medicine consultant/Endocrinologist
to evaluate you and if required treatment for hypertension should be given.
In the meantime lifestyle modifications like reducing salt in diet and reducing weight, and regular walking exercise should be continued.
Your Recent TSH is 10 which is high and your treating doctor would increase dose of Thyroxine and monitor with periodic Thyroid function tests
.Your shortness of breath
must be examine and investigated with an X ray and Lung function test to see if there is any pathology which is causing if every thing is fine it may be due to your overweight.
Please take care