Back pain after LLETZ

I’m on day 2 after my LLETZ procedure and didn’t have any bleeding or discharge until today. But it now looks the same as when I had the initial biopsy which I’m not worried about but did find it strange… 

I also this afternoon starting having severe back pain that has been persistent even after taking paracetamol. It is sharp pains in my lower back and also have achey legs which feel affected by the back pain. I have gone back into work today and unsure if I’ve just twinged something there or if it’s related to the LLETZ. I cannot seem to find anything online about back pain being linked.