I have on a few ocassions looked at both DDs quick abrupt texts and thought, well, you could have put that in a nicer way! I do have proof though that this is how both of them text each other so I shouldn't look into it too much. I am having a chuckle at,the mention of PMT, not at all funny when you are going through it but DD1 especially, seems to have more that her fair share I've noticed 
I know my DDs love me but sometimes they can say something without thinking it through as indeed can I.
Don't take it to heart. Look after yourself just now and concentrate on getting better. 