4k a day overtime is when you can get toxicity...

Most supplements are a tenth of that, and doctors usually won't recommend over 600/day...

You say you were taking 8k a day bro.

Even the 50k/14 days is just under when toxicity normally happens. But it's probably because you're pushing to take an absolutely insane amount and she wanted to first get you under the limit.

So I would like to know, in your opinion

Stop fucking asking random people and listen to your doctor.

The reason your blood levels is normal, is all that calcium is forming kidney stones. Those will be incredibly painful, and will teach you the lesson if you haven't learned it in a couple years.