s what keeping your TSH down and more importantly, is increasing your
Free T3 and
Free T4, which are the actual thyroid hormones. Increasing
Free T3 and
Free T4 are what's needed to alleviate your hypothyroidism.
No, you should not reduce the dosage unless you have symptoms of over medication, such as diarrhea, rapid weight loss, tremors, etc.
What are your Free T3 and Free T4 levels? Those are much more important than TSH, which is actually a pituitary hormone, not a thyroid hormone.