Hi and welcome to HCM.
These are nonspecific symtpoms but most commonly disorders are IBD
, bowel motility disorders, diverticulitis
or various anorectal diseases. Also UTI can cause such symptoms. You should change your dietary habbits and see is there any improvement. UTI usually comes again and again. You are too young for some serious diseases,but if symptoms persist and UTI is excluded then diagnostic tests such as colonoscopy
or CT scan
should be done. Also you can do stool analysis.
WIsh you good health.