No, it means you are on the correct dosage of medication.
Actually, you need to keep up the testing every three months, because your dosage may be too high.
Whether the thyroid is functioning at all depends on how high your dosage of Levothyroxine is.
Whether you will continue to take the Levo forever depends on the condition of your thyroid.
Im not sure but my tsh is o.94 (on the low side but normal) waiting on antibody results.
There is a lady in here who helped me figure things out she goes by the name: 898
I would suggest you talk to her:)
Hope everything works out.