It is not likely that your vit D was too high. that would have to be over 100 or so. Maybe if you live in the desert Southwest and spend lots of time outdoors you'd have high Vit D. We spend so much more time indoors today--air conditioning, video games, movies, etc-- than our ancestors did.
I would want my Vit D on the high side when fighting recurring infections and cancer due to its link with nagalese and Gcmaf.
Let us know how you do with the increased intake of zinc.
While I like the expensive, tasty mint zinc lozenges from life extension, I more commonly use just 1/4 of a 50mg zinc gluconate tablet from the local CVS pharmacy. Before bed I chew it with a tiny bit of water and let the thin paste coat my mouth. lips and throat.
Supposedly it will taste neutral, not bad if you are deficient in Zn. That is my experience too.