Your TSH is perfectly normal.
Anti TG and anti TPO positive tests means that you could have autoimmune thyroidistis , though in eastern countries these antibodies
are positive in many people with normal thyroid , so nothing to worry about
Keep on checking your TSH 2 monthly than 3 monthly , increase in heart rate
is not because of antibodies or thyroid , could be due to stress of having thyroid problem , so nothing to worry about
you can take beta blocker