I am sorry to hear that. As a carnivore I find this to be such a bummer... love me my red meat. 

It's an interesting indicator that you do slightly better with higher quality meat. I find it to be crucial for so many reasons. 

Intuitively it seems to me like your liver may potentially be needing decongestion. Have you ever done a liver/gallbladder flush? 

So many nasty contributors nowadays to overwhelming and making the liver sluggish...