It's very common in early pregnancy for any symptoms to fluctuate from one day to the next. One day you might feel completely exhausted, only to feel fresh and re-energised the following day.
(Hope this helps!)
I know the kidneys do this and form urine. I hope this helps somewhat.
Introspection involves reporting your thoughts, feelings, and: sensations
Humans "poop" do get rid of fecal matter. Fecal matter consists of food that can't be digested and is lining our gastrointestinal tract. Because we have no use for it once the nutrient's are gone, we need to get rid of it by "pooping."
