(((WMD))) I never ask are you ok to anyone unless I really have time to find out, and offer some support etc, or unless someone is there to offer support. It isn't meaningless for me. I'm sorry it triggers you and I will do my best to not ask you.
If someone does ask, rather than leaving, could you try to use the "away" setting and then sit and tell yourself, it's ok, it's ok, they aren't trying to trigger me, I am ok" and then come back into chatting as you can?
Let us at PC help you work through this too, as I know we all appreciate your chat input and needs too.