I have been reading up on the effect of suppressing TSH and the risk of cardiac events (as I received this statement from GP and endocrinologist based on my values!).
There is an excellent article by Shapiro et al, showing that patients who are asymptomatic, suppressing TSH below 0.01mcU/ml does not lead to increased cardiac symptoms (mean follow up of these patients 9.2 years!). There was an increased Left Ventricular Mass Index seen in these patients, however this was found to be of no clinical or prognostic importance.
The full article can be found here:
I hope you will find this useful.
I will continue my search and share further evidence.
All the best & thanks