so i think i've gotten a uti.. these past three days, every few hours i have an episode of constantly needing to urinate small amounts and lots of burning. it lasts for like two hours and then i'm fine again which is throwing me off. are the on-and-off symptoms normal?? do i really have a uti? i brlieve i got it by either holding in my bladder or with frequent sex. i'm too embarrassed to tell my parents. what do i do? should i tell them : ( anything is appreciated