Since you ask...
I vary - some months I can feel the depression descend on me, some months, I find I'm weepy all of a sudden and then realise, some months I hardly notice. It's the same with pain, mostly I'm ok, nothing more than a slightly crampy stomach or an aching back, some months I have to take to my bed with a hot water bottle. Sometimes if I happen to be busy or distracted, I hardly notice any discomfort. I've never properly studied it, but there doesn't seem to be a firm connection between the strength of the mental and physical symptoms.
Living alone, I don't know how it affects others - maybe I'm a tad snappier sometimes, but sometimes I'm like that for a million other reasons anyway. Luckily the men I have shared life with have tended to be the understanding type.
My sister reckons that post-natally, she's noticed that she becomes more clumsy.