Estelle, I suffered with bladder pain, frequent urination and much discomfort down below for six months and all my doctor would do was prescribe antibiotics and pills for overactive bladder. Nothing worked so, in desperation I changed doctor and hallelujah, the new one gave me an internal examination and declared I had severe vaginal atrophy. He prescribed Vagifem and it worked like a dream. No more planning my days out around public toilets and no more discomfort.
It might be worth you having an examination and seeing what the outcome is.