Poor woman - don't know what i did! I sort of recognised her from when i worked there 20 years ago. Always remember her as being nice and happy go lucky. Anyway, im away with the fairies today - had done my shopping and decided to buy some flowers to put on my dads grave. Got my three pots of flowers, nearly dropped them, went to the till, gabbling away about how scatty i am. Shes looking at me like im an alien - so i say to her, oh, you look like you're having a day like mine (its not been great), no answer, so i ask her if shes ok. She says "oh ive got a headache" See, this was the point where i should have shut the fuck up and took my shopping and left. But no, I went on about how i had a headache for two days and it wouldnt go - bla bla bla. Next thing i know shes out of her chair and off to the ladies in floods of tears.
I told her supervisor who was on the next till that i didn't think she was very well and she said "oh, shes always doing that, gets on our nerves" 
Felt bloody awful, and what is worse, i just left without checking on her :(