Catheter from Hospital - anyone else have an issue post delivery?

I had a c section back in December and they put a catheter in after I was numbed from my lower half down and then it was taken out the next day.

Fast forward to my two week check up I let OB know I felt burning while I was peeing and he tested my urine and did a culture and everything was negative for a yeast infection and a UTI infection.

(I did test positive for Group Strep B prior to delivery, but because of C Section, no antibiotics were given).

Fast forward to my 6 week check up last week, I informed OB still burning while peeing, no problem with frequency or flow... they did the culture again and urine test... all negative.

They think the catheter has irritated my vagina... and said it should heal over time.

Anyone else have this issue? And any solution to fix it.??