Hi There I Think I May Have A Bladder Infection

Hi there I think I may have a bladder infection , am having a stinging sensation when I urinate, a throbbing in my vagina area , pain in lower back and pelvic area, shivers and sweats. I have taken a course of sodium citrate but this has not worked . I do have an emergency course of Amoxicillin 500mg as I have c o p d, shall I take these as I cant get in to see my doctor. Kind regards Jacqui.