Declining health after head-laceration but when it reaches the bottom it stops declining.

[Comrade Johnny]

So, in my third ever run, where unlike the previous ones I became the absolute home-camper, I had a total of two noteworthy zombie encounters. The first one is obviously the nearby spawncamping zombiehorde that started banging at my door the second I spawned in. I got them, minor scratches and that was it. Rags on it, eat, a day later everything was gone and I was in top shape again. The second one was bigger, and more unfortunate, I got two lacerations and a scratch. The first arm, laceration and the scratch were gone after a day, as usual, but the head one stayed. I was also constantly depressed and nervous, but after day one this became the normal condition. Then suddenly my health started declining. I read the wiki and it said that I was likely zombified. So I settled everything, undressed, stored everything, put the keys in front of the house, and sat down in the grass. My health declined, to terminal damage and I was ready to die until my character suddenly noped out and my health stopped. It recovered to highly critical damage and I was very confused as to why I didnt die. What the hell is the matter with my character. He doesnt get better but he also wont die. What do I need and what can I do? I already bandaged the laceration and there are no other injuries. I am also sick for some reason even though I wasnt in the cold before my failed, wait-for-death attempt.