My lower back, right at the waist being hurting me for the last 3 days, am starting to feel concern wondering if I should see the doc, anyhome remedy?

Back pain therapy. Although many things can cause lower back pain, the most common causes are musculoskeletal related including muscle or ligaments strain. Best initial treatments for these include rest, stretching, otc pain relievers and heat therapy for tight muscle spasms. Serious signs and symptoms are abrupt severe pain, numbness, tingling, or muscle weakness and would warrant involvement of your doctor.
See doc when in doub. With that minimal amount of info I have no choice but request you see your doc.