Thyroid Tests-what tests do you need yearly?

I have been on thyroid medication for 8 years (levoxyl). I have blood work done yearly. Today I realized that my doctor is only testing free t4 (1.02).

Is only testing free t4 enough?

I have been having increasing hypothyroid symptoms (fatigue, swelling face, fingers and toes, coarse hair, inability to lose weight with diet and exercise, etc)

Thanks for your help!