You should ask for a full thyroid panel-TSH, FT4 and FT3 and go from there. TSH alone isn't very useful-it fluctuates throughout the day, and you could actually be hypo or hyper, yet your lab could ring up "within range."
As for Vitamin D, it can take months before it moves up if low-same with iron levels. Have you had iron/ferritin levels checked? B-12? How are your blood sugars doing? Okay? I know when mine are wonky (I'm type 1) I can feel very sleepy for a few days after I've had a bad high, even after it comes down to normal.
Also, do you know the ranges for calcium from your lab? I'm curious because on mine, a 10.8 would be cause for concern of too much calcium. Also, what about the range for PTH? I'm also curious on that if they consider that high or not-I know every lab is different, but I had one done and the maximum range for it was 72. That does seem concerning for me regarding your parathyroid function.
The best you can do is bring up these lab value results with your endocrinologist, and ask for further thyroid testing to rule things out. You may want to ask about antibody tests for thyroid as well, but if you can at least get FT4 and FT3 for the time being to see where you stand, that's a start.
What's the reference range for the PTH? Range vary lab to lab and have to come from your own report. Your calcium level seems high, as is your vitamin D level. Why are you taking 50,000 IU/week with levels like yours? Did your doctor prescribe the vitamin D? Vitamin D may be contraindicated when calcium levels are too high.
There are a lot of things that can be tested in urine. What was tested in yours, that came with a result of 546 and again, what was the reference range?
It's possible that you have a parathyroid issue. When is your appointment with the endo? You might want to find out about whether you should stop taking the vitamin D until after your appointment.