Check your vitD receptor status. If you have high receptor count and they working, you may not need so high level of active vitD blood levels.

If you are getting plenty of full body sunshine with moderate to high UV(B) index and not burning yourself (and NOT wearing sunglasses!), your body ought to self-regulate.

If this does not help and megadosing on VitD3 supps (try fish based from Blue Bonnet in oil capsules or real untreated cod liver oil with standardised amount of real, non-artificial VitD3) only hurts you, then you need to check your autoimmune antibodies.

Also, if you are doing high VitD3, you NEED to take vitamin K2 (mk4) and magnesium so that hypercalcemia risk is downregulated. Also, if you have any kind of kidney disease (measure it, don't guess it), you need to go easy on the VitD3 AND measure your 24h urine collection for calcium levels, so you are not over-stressing your kidneys.

Bones hurting can be (is not always) a sign of growing hypercalcemia. This you can also easily/cheaply test for. With 24hour urine collection you can find the current "safe level" of extra vitd3 intake for your current kidney function. For more info, see : https://www.hsctstopsms.com/simple-overview-of-coimbra-vitamin-d-protocol/lab-tests-needed-for-coimbra-protocol/

A good functional doc knows all this and much more Godspeed.