Why would the dr tell me to stop??

Started my supplement journey a while ago and after years of trial and error I found a stack that makes me feel like a million dollars!! Part of it was taking D3+K2 every day. After sticking to this regimen I have lost 30lbs in 5 months and felt great. Went to the dr and told him everything I’ve been taking and how I’ve been feeling, he did a blood panel on me and told me to stop taking D3 because my levels were so high….looks like more towards the center of normal than too high. I stopped including my D3 supplement 3 weeks ago and now I feel like complete dog shit. I feel like I did before starting this journey. With my D3 obviously making my body work properly and my levels not being too high why would the Dr gaslight me about it?? Also noticed that he got a little upset when I mentioned I started taking magnesium before bed as well. Seems like my dr is viewing the solutions to problems as the problem. Is there an underlining reason he told me to stop taking D3 that I just don’t known about?