I started taking vitamin k2 mk4 on Friday, combined with 3000u of D3.
About an hour after I take it - everytime I take them - I get hypersensitive, that is I can feel my pulse in different areas of my body whereas I would usually not notice them. Also I get a slight headache and the other day I had a wierd episode where I felt like something got stuck in my throat when I swallowed... I coughed forcibly and I was instantly dizzy - it only lasted a second but it felt like my brain span out of my head - then I had a migraine for a few hours before taking ibruprofen to kill it.
Now how much of this is placebo as I suffer from anxiety and how much is real?
I see a lot of people having side effects when supplementing k2 or D... but it seems worth these sides to me for the health advantages.