What kind of exercises does the PT have you doing? Are you doing a lot of foot/ankle posture exercises in a mirror (to watch the posture)? Are you doing a bunch of very silly looking toe exercises to strengthen your intrinsic muscles? Do you have calf raises in a few different postions to strengthen the extrinsic muscles? Hips have a lot to do with the feet/ankles in women, does he have you doing hip external rotation exercises like clamshells, and hip abduction exercises like side leg raises?

What kind of insoles did he have you buy for your shoes? Did he put wedges on the undersides of the insoles to help align your ankle and foot bones and take stress off the tendons and ligaments? Do the insoles have a deep heel cup?

If he's doing a good job with the rest of it, and just got overenthusiastic about ionto, then maybe I was being too harsh when I said go ahead and get a new PT. But I really think you will be better off if you DON'T get another ionto.