It was only when someone suggested I read up on narcissism that suddenly lightbulbs started going off in my head, so many of the now ex husband's behaviours were classic narcissistic behaviours. If only I'd known sooner. Things is assumed were just him were classic signs of narcissism.
He wouldn't ever have taken himself off to the doc because of his behaviour. After all it wasn't a problem for him, only for others round him. OP, read up on narcissistic behaviour. Read accounts of people who've been affected by narcissistic behaviour and if you start thinking, yes, rhat's happened to me, again and again, it doesn't matter that the person hasn't been diagnosed. If I wake up and my nose is running, my throat hurts, I'm sneezing, I've got a headache and a bit of a temperature, I think I've got a cold, I need to start doing things to help it get better and to help with the symptoms. I don't need to have the cold diagnosed. If I feel the prickling on my lip I think I'm coming down with a cold sore, and if I do nothing the sore usually bursts out, if I get the cream to help deal with it . I don't need a doctor to diagnose it
By their fruits shall you know them.
If it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck.
I wish I'd known what I was dealing with a lot sooner, life would have been a lot easier, both with him and a handful of other people I've had to interact with in my working and personal life. I'm now less trusting in general, and have worked on my boundaries.
Read up about gaslighting too and other manipulative behaviours that seek to threaten your sanity. And how narcissists find their targets
Maybe write down things that happened, as much as you can remember, and add to it as you remember more. You will be able to see that the behaviour wasn't a one off, it was habitual and look at it from the outside, and learn to recognize the behaviours to help you spot them early. One thing I spotted as a red flag, very intense sharing far too soon, and love bombing. Writing things down helped me a lot, it brought lots of things to the surface, recognizing them, acknowledging them, like digging out bits of long buried shrapnel, or lancing an abscess, so that there was less and less to come to the surface and catch me out. The scars will always be there, but acknowledging it. talking about what happened/ thinking about it isn't so upsetting any more, I can think of something that happened, without getting upset and I can deal with it, mostly anyway.
As well as grey rock, there is also yellow rock, which has the basics of grey rock, but you are in a situation where you have to interact with someone. Narcissists enjoy any attention, they love to feel important to you. So you behave as grey rock but bring the matter in hand into the conversation as briefly and as businesslike as possible, don't let them try and get you to go beyond the matter in hand, just stick to the matter in hand. Politely. Not nastily, just not engaging apart from the necessary matter in hand