Having some pretty bad problems ? Seems like I'm starting with cystit…

Having some pretty bad problems ? Seems like I'm starting with cystitis. Went to see a therapist and she told me to drink Monural, after that I also said the same thing to my gynecologist, she says it's normal for pregnant women, you don't need to drink anything, type of pressure on the fetus. Well, this is such discomfort that I walk to the toilet, I feel like I went, but then I stand up and understand, damn, I want again ??‍♀️ By the way, I can go in half an hour sometimes more, already tired? I always had cystitis, but it was always without pain, there were very frequent urination which of course caused strong discomfort. Now I sit