I want to believe in the iodine cure, but I had mixed results. It worked really well for a few days then it crashed me hard. Some say it's because the adrenals couldn't keep up. I have no idea, but I think it made me go hypo.
I have been able to reduce my adrenal steroids and my thyroid meds on Lugol's. It happened naturally, but not until I'd worked up to 50mg/d, and I'd gad some fairly crappy detox symptoms. It certainly hasn't made me hypo, although obviously different people will have different responses to the same substance.
Is it possible that your crash was in fact some hefty detoxing? Or caused by some hefty detoxing?
I'm still detoxing, at c.100-140mg/d. I know I am, bevause I'll start sweating for no apparent reason, get a huge headache, feel sick, develop a rash (latest is on both cheekbones), and my pee changes colour. It can be actually brown, which is alarming - very def NOT dehydrated, drinking 3L plus water/d, and I more than pass the pinch test.
I tried taking 1.5mg iodine kelp tablets a year or so ago, and felt diabolically unwell on them so I gave up. I didn't know about all the halides then.