This can be some sort of mild infection which may be just causing few RBCs to come into the urinary tract
. Since you are desrcibing that no pain or nay other sign of increased frequency is not there, I hope you are also not having any fever
This infection can be some non bacterial infection and so the typical sign and symptom of UTI is not there.
I would suggest you to have an Urine culture test for infection which include testing for fungal infection
along with bacterial infection and if possible try to have investigation for parasite infestation also.
In the mean time try to maintain your hydration and cleanness.
Thanks and take care.