Hi. I am 20 and had a baby 4 months ago. During my pregnancy I had two UTIs. Now I Have horrible lower back pain on the right side which I can feel deep from the front also. I ve thrown up, chills, sweats, achy body. I went to the Dr and they thought kidney infection and gave me an antibiotic but so far it hasn t helped. This is day 2 on the antibiotic. It also hurts in the right kidney area When I laugh, yawn, throw up cough or even just inhale a deep breath and no matter what I do or what position I m in, it still hurts so bad. Is this a kidney infection or kidney stones?