I have been following a daily log of my own stools for over two years after a bout of chronic Lyme disease. After much research of the Dr Richard Klinghardt's research of how if you want to heal the body, rid the parasites that house or host all the bad bacteria/viruses/etc. when I did a simple $20 parasite cleanse ( Now brand Wormwood complex did wonders) followed with daily clorella ( a sea algae that binds 90% of heavy metals or toxins from our bodies) I noticed a HUGE difference in my body. The things I have documented coming out of my body includes larger to the eye visible worms of all sorts, liver flukes, ropeworms( typical of all Lyme folks, ms or autism folks) candida, and these blueberry balls. The blueberry like balls really stump me because I can't seem to find any literature on what they could be besides 1) possibly blood from upper GI tract but they all seem too consistently shaped exactly the same way to be just dried blood 2) possibly another type of unknown parasite 3) possibly a colon polyp being sloughed away if you are actively detoxing. ( I notice them most post coffee enemas or what I am Taking Diamateous Earth to deeper clean my intestines. I take Colloidal Silver under my tongue 2-3 times a week which REAlLY kills some internal buggers too but the blue balls are unique. They come out more randomly like an extra, extra cleaning is happening. A few thoughts I have is that it could be just the rope worm heads as the stools will often carry bits and pieces of mucous or threads which lead me to think they're just ropeworms sort of pulled apart or broken apart. Ropeworms are thought to be in anyone who's digested anything after agricultural changes and non gmo agriculture came onto the scene basically bringing pesticides inside our bodies growing these types of creatures. YouTube search Dr Richard Klingardts lectures or Dr Alex Volinsky's on the ropeworms. What I notice has worked the best is coffee enemas but that's strongest effect on them but I would always get sicker for about 2 weeks as I detoxes it all and then immediately felt better , more energy and less bloating. I almost have to schedule my heavier detox methods knowing I could be feeling worse before feeling better. I take daily Epsom baths and use a massaging heated pillow all over my body to encourage lymph filtration and detox daily. I alternate the parasite cleanses but the organic chlorella, liposaumal Vitamic C are done daily I always sleep 8-10 hours to allow the body to do deeper healing. My next mode to healing will be to try water only fasting for a few days each month and see what exits my body during those days,,,,..YouTube search Dr Richard Horowitz lectures on coffee enema benefits. Good luck !

Could be bacteria lysing from the intestines