Extreme bloating and diarrhea

Guys, I'm 5 days on carnivore (meat, homemade kefir small amounts and homemade yoghurt also really small amounts , salt, water). Im bloating so bad, especially in the morning and my diarrhea has never been so severe. I have severe ulcerative colitis but never had problem with it, usually its constipation which i was afraid of when i was switching to carnivore. I have bloating problem for a while now but i thought it gets better because there is nothing to be fermented but it got even worse. My stomach is rock hard when i touch it and gasses just travel around my guts but barely some come out... It's causing me so much discomfort and pain and sometimes i can't even straighten up my posture...