... because I breastfeed.
I asked the pharmacist for painkillers for a bad back, and said my GP and HV said paracetamol or ibuprofen were ok while I was breastfeeding.
She was just selling them to me when her college came up, snatched tem from her hand and said in an angry, accusing tone "it's not what you SAY your allowed. .. its what we are allowed to sell you!!" as if I was a child poisoner of something. 
The irony is of course I just went round to the medicine aisle and put it in my trolley anyway - so clearly they could sell it to anyone.
I don't know whether to mention it or complain? Even if it was forbidden she could suggest another thing. 