There's no such thing as 'normal'. And when doctors say 'normal', all they mean is 'in range' - and you can see that for yourself! lol However, your TSH is a little too high for someone on thyroid hormone replacement, and your FT4 is a little low, so you really do need an increase in levo. And, there's no FT3, so you have no idea how well you're converting. So, in my opinion, saying you're 'normal' is a little bit of an exaggeration.
So, is he saying he's never going to test you again? I find that a little strange. I suppose he doesn't understand that you have Hashi's, and that when someone has Hashi's, their TSH should be suppressed, and that the antibodies themselves will be making you feel bad and an attempt should be made to lower them, and that - with time - unless these things are done, you're just going to get worse and worse - your TSH is going to get higher, and your Frees lower, and you will be more and more hypo. With time. And, that - from time to time - you will probably have Hashi's flares, which will make your hormone levels rocket, and give you hyper symptoms, when you will need to stop your levo for a while, until the levels go down. I suppose he doesn't know any of that.
So, how do you lower antibodies? Well, you could start by going gluten-free, that might help. And might make you feel better. And, then, you could try taking selenium, which might also lower antibodies, and also help with conversion. So, that's worth a try. And, you could try asking him to test your vit D, vit B12, folate and ferritin, in case any of those are low, which will add to your symptoms. In fact, there are a lot of things that can be done, instead of just leaving a patient to stew.