How are you? Lower right back pain or flank pain may be associated with kidney infection as well as possible musculoskeletal issues. Kidney infection may present with any of the following symptoms: back/flank pain, fever, difficulty urinating or urinary urgency. To determine the underlying cause, diagnostic tests such as urine test or imaging studies of the back may help. A referral to an ophthalmologist may also help evaluate your eye issues. Direct clinical examination is important. Take care and do keep us posted.