Hey Multi...
Wie geht es Ihnen. Ich spreche nur ein kleines bisschen Deutsch... and not very well either...
Welcome to CH.com. I think you've already figured out, you've come to the right place. We know what you've been going through.
It appears you've got a great doctor and he's is on the right track... He's just a little too conservative on the vitamin D3 dose.
If you want the CH beast to go away and stay away fast you need a higher loading dose of vitamin D3 and you also need the vitamin D3 cofactors that aid in its metabolism and therapeutic benefits.
With a starting 25(OH)D serum concentration of 9 ng/mL, you're going to need a total loading dose of vitamin D3 of 700,000 IU to elevate your serum 25(OH)D up to a target value of 80 ng/mL (Where most CHers remain CH pain free). You'll also need the vitamin D3 cofactors: 400 mg/day magnesium, 10 mg/day zinc, 1 to 3 mg/day Boron, vitamin A (retinol) at RDA and vitamin K2 complex (MK4 and MK5). 1000 to 2000 mg/day Omega-3 fish oil will also help.
The average 25(OH)D response to loading dose of vitamin D3 is 10 ng/mL for every 100,000 IU of oral vitamin D3 taken... You're presently at 9 ng/mL and you need to be at 80 ng/mL. Doing the math, that works out to a total loading dose of 700,000 IU of vitamin D3. If you spread that amount over 14 days it works out to 50,000 IU/day vitamin D3.
I know that sounds like a lot of vitamin D3 but there are studies where vitamin D3 deficient patients were given a single oral dose of 600,000 IU of vitamin D3 with no problems noted... The average response was 60 ng/mL on top of their starting baseline 25(OH)D serum concentration...
Accordingly, I would take 50,000 IU/day vitamin D3 for two weeks (14 days) then drop back to a maintenance dose of 10,000 IU/day vitamin D3. Be sue to take all the cofactors and Omega-3 fish oil daily.
The following link will download the latest version of the anti-inflammatory regimen CH preventative treatment protocol.
Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

It explains all of the above and a lot more... Well over 600 CHers have started this regimen since December of 2010. Better than 80% of them experienced a significant reduction in the frequency, severity and duration of their CH within 30 days. 54% experienced a lasting pain free response to this regimen as long as they continued taking it.
Please discuss it with your doctor. That way you'll both be singing from the same sheet music when you ask for lab tests of your serum 25(OH)D, total calcium and PTH (Parathyroid Hormone).
Hashimoto's thyroiditis is an autoimmune disorder. The anti-inflammatory regimen with lots of vitamin C should be helpful, but please discuss this with your doctors first...
There are a few physicians who have successfully treated patients suffering from autoimmune disorders with even higher doses of vitamin D3 resulting in remissions...
See the following links:
Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

's+Thyroiditis+and+Vitamin+D+-+multiple+studies
Take care and please keep us posted.
V/R, Batch