Terrible reaction to vitamin D3 and vitamin K2 MK7

I took 30,000 iu's of vitamin D3 four to five times a week for about a year and a half. Felt great. No problems. I was concerned that that might be too much, so I stopped D3 temporarily, and started taking 300 micrograms of vitamin K2 MK7 to direct any excess calcium there might be into bones from my blood. I took the K2 for 10 days.

I started having shortness of breath, heart palpitations, slight lightheadedness. Scary symptoms. I stopped the K2 as soon as the symptoms started, but they did not go away. Four days later I start reading about potential side effects of K2 and D3. Many people have experienced similar symptoms.

Has anyone here had a bad reaction to either D3 by itself, K2 by itself, or the combination?

I had blood work done and all my levels are within normal ranges. I've read that I need different types of tests to test for these deficiencies. Any thoughts on the subject would be appreciated, thank you!