Concerned About Senior Cat’s Hyperthyroid?

Our vet says the level, 3.4, is not high enough to medicate. It has inched up past the level of 3, tested five months ago. The doc advises treating with a homeopathic or herbal or Chinese medicine and retesting in one month. Has anyone had success with PetAlive Thyro Soothe? I’m not finding many reviews for it. After reading mixed reviews about Resthyro, an herbal supplement, I have opted not to try it. I have not researched Chinese remedies yet but our vet has offered to if we want. She suggested Standard Brand thyroid support, but reviews I’ve read said it’s pretty useless. Still, I don’t know. I suppose it depends on the level of the problem. Our kitty is almost 15, has lost about 1.5 lbs in the past year, and has mild lethargy during the days with occasional bursts of crazy at night. Her coat looks duller than normal, but she still grooms. She eats a primarily raw diet (commercially prepared) with small amounts of grain-free canned added to it. Stool is normal, occasional vomit of clear liquid, and slight increase in drinking water. All her other tests are normal, but that’s to be expected as hyperthyroid masks other test results. We had another kitty with hyper; he got the nuclear procedure, but his was very severe and he was only ten. He lived another seven years. We’re trying to figure out the best approach for this early level of the problem. Help!!