Pumper the pumper, can I suggest you do two little experiments this morning.
- get a timer, press go and shut your eyes. Press stop after 5 seconds. See how close you are. I'm usually 0.5-1 second out.
That's the easy test. The second is that you as your partner if you have one, to secretly set a timer going, stop it and ask you to estimate the time. How close to the actual time we're you?
The first test shows how even under perfect conditions our ability to estimate time isn't great. That's when we know we need to count, and count from the start. The second is a retrospective count (how long did that happen for?) and that's really, really hard.
The situation here is somewhere in the middle, as the op was not anticipating counting (and almost certainly wasn't counting) but equally, would have been aware of the 'start' as it were. The pain she was in would have distorted it though.
Yes, he said he was coming (which he may or may not have said anyway). I've timed it and I can happily say that in just over half a second (0.62) so that is no indication of the five seconds at all.
Without a stopwatch, no one can ever truly 'believe' someone's estimate of time with anything as most of us are terrible at it.
Refusing to acknowledge that a guess of time in pain, may not be accurate, is very biased.