Discrimination from GP about private prescription?

Hi all

For the past 6 months or so, I have felt very lethargic and have gotten sick far more than usual. For context, I started Mounjaro in late January through an online pharmacy, after I started feeling off.

I had a phone consult with my GP today asking to potentially get some bloodwork done to determine what might be causing my energy issues (I asked to check iron and hormones, as I have endometriosis).

My GP’s response was quite visceral. She said that, because I had started Mounjaro recently through a private provider, that she couldn’t refer me for blood work because I went through a private pharmacy. I said that my symptoms had started pre-Mounjaro, but she refused to budge. She was condescending and the consult left me feeling quite down. She said the best she could do was book me in for a general blood count and, if that was off, we could go from there. I pushed back but she wouldn’t budge.

I’m wondering if this was out of the usual, and if this is an issue with my specific GP or if this is system-wide? I am based in Scotland.

Thanks so much for any advice or guidance in advance!

Edit: Thank you so much for those who gave thoughtful responses! I will look into changing practices. I want to clarify that I am not bashing the NHS - I know that it is underfunded and overstretched. This question came from a genuine place by someone who is unfamiliar with the system in the UK.