Strange feeling after HSG

Hello. I had an HSG on Wednesday and I'm feeling odd today. Like I have a dull ache as if I have a UTI, but I took a Pyridium (which I think is like an AZO UTI med), and it's not feeling better. I feel like I need to pee but nothing is happening really. I also have an odd pain in my vagina (sorry for the vulgarity) as they actually had the speculum in for about 20 minutes. It was a very traumatic HSG, very painful, had to use a bigger than normal catheter balloon as my cervix had dilated after the first attempt... The radiologist was very good and used Betadine to swab everything but still, I know there is the risk of infection.

I don't have a fever nor do I have foul smelling discharge. I am still bleeding a bit from it though.

When should I worry that I have some sort of infection? I can't tell if if it might just be a yeast infection (I will be taking probiotics in about an hour too, just want the Pyridium to kick in).

Thank you.