Ive been experiencing nausea& sharp pains in my lower back when ever i urinate and having to frequently pee. the pain was on one side but now on both?

Here are some ...: The described clinical profile will not lead to a sensible conclusion. But, a combo of analyzing the info on the onset, degree, duration, interval, evolution, progress, and resolution of all symptoms and their potentially related discomforts + conducting proper physical exams + doing timely tests will give you the best possible hope getting down to what have bothered you. So, work with Doc...