If the homeopath gave you T3 she made you “hyper” not hypo.I am not sure what you mean by “after reading vit D toxicity and hypothyroidism…”?
You can safely take up to 10,000iu a day. That is the upper “proved” safe limit at the moment. (Many people have been given more than that or have taken more than that but 10,000 iu is the official upper limit. So if I did my calculations correctly 10,000 iu a day would equal your 50,000 iu every 5 days. If you can take it on a daily basis it would be better. Meaning take somewhere between 7000-10,000 iu a day.
I do not know if the “hyper” has any effect on the Vitamin D. I kind of doubt it but I am not a doctor or scientist. Since the “hyper” was induced by medicine and not your thyroid going “haywire”, you should hopefully be better soon. (Did you know that going “hyper” can cause mental as well as physical symptoms?)