Your ECG is normal Get a Echo done Your TSH is still elevated You need to increase the dose of thyroid medication You symptoms could be because of this including the anxiety Consult a endocrinologist

Since ecg is normal nothing much to worry about heart issue...Consult nearest psychiatrist as you require detalied counseling session and you may require medications such as SSRI or tricyclic antidepressants for your anxiety which may be the underlying cause... With that fallow relaxation techniques like yoga, meditation,avoid alcohol, smoking, coffee, tea...have good sleep and develop healthy food habits..try eating several small meals instead of three large ones whenever you can...Avoid foods that irritate your stomach, especially those that are spicy, acidic, fried or fatty etc...Regards.