I used to get a blackhead in the same spot in my ear, massive thing that would appear suddenly. One evening, after worrying at it during work, I gave it the gentlest prod and heard a BANG then this big round rock like thing fell out my ear. It was the biggest blackhead I'd ever seen. And it never returned. 20 years later I'm still disappointed it hasn't come back.
Then in labour with DC1 my body suddenly started to push her out. I had nothing to do with it apart from consciously adding a bit of effort. I just felt this squeezing and pushing (and pain as she crowned, it wasn't painless, just unstoppable) as my body took over.
And after labour with DC2, I was terrified to poo. DC1 I'd had stitches, but DC2 was back to back and i was left with piles the size of golf balls. Not an exaggeration. I decided I was never evacuating anything else out my body again.
The midwives (a different one most days for the fortnight after birth) would come in, ask my how labour had been (scary, I'd cry) then asked if I had had a poo. I had not, I said. Worrying, they replied after a couple of days.
I had to eat bowls upon bowls of bran flakes. Still no poo.
I think I got to day five or six. By now I was wondering what my body was doing with all my waste product, it couldn't all be coming out as farts and wee.
Then finally I got the urge. I told DH to standby in case it went wrong and I turned inside out.
I had an entirely normal, maybe on the large size, poo that felt like it weighed around 10kg. I thought it would break the toilet. After that, I was back to normal. I did have to phone the midwife and let her know - by this point she was threatening readmission to hospital for exploratory examinations.
(Piles subsided after a fortnight of frequent application of creams, ointments and suppositories.)