Whether or not you have detox symptoms, your body will take this supplemented Iodine into the Iodine receptors and do work behind the scenes. I never particularly had any trouble supplementing Iodine until I'd been on it for quite some time and had raised the dose.
In other words, it's hard to predict how anyone's body will react, but iodine is an ancient mineral, so trust your ancient body to know what to do with it :)
We support the idea that a minimum dose of Lugol's should be 100 mg. Since you're doing well, consider moving on up to 100 mg and hanging out there for a good long time. It's just fine if you don't notice anything in particular -- your body knows what to do.
It's nice not to have to work so hard at something good :)