Regarding slow urination. While taking?

Hi, I am having weak Urine Flow from last year sometimes with lower back pain, pelvic pain after urination. I have done all the reports and tests and according to doctor( urologist) I have bladder sphincter spasm (dysynergia) I am taking Alfoo from 8 months and again i have been adviced Alfoo for another 6 months and also added baclofen for 6 months. Also, when I stopped Alfoo after 8 months for 7 days, again same symptoms such as slow urination, back pain, difficulty urinating started. According to him this sphrinter spasm is due to anxiety and stress because I had never any spinal injuries or surgeries. Now, the question is 1.Can this be due to stress? 2.Can there be any permenant cure to this in allopathy or lifetime some or other medicine need to carry out with pain? 3.How much its safe to take Alfoo, because I am having many side effects of this once i stopped taking and also while taking?