I Have My Thyroid Hormone Levels Checked Every Year Due

I have my thyroid hormone levels checked every year due to having a 4cm thyroid nodule. My lates results are T3 - 3.4 T4 - .68 and TSH - 5.05. My PCP says that is normal but from what I have read having levels at the lower range of normal and higher range of normal is not idea and can indicate thyroid disease. She I see and endocrinologist who is better versed in this area than my PCP?