My Brother has been facing the following problem for the last two weeks. He is not able to stand continuously for 10 minutes because of lower back pain (not exactly lower back pain but experiencing pain in the lower back). He is not able to tell what exactly it is. If he sits on a chair or floor immediately, the pain goes off. He is not facing any issues while riding the bike or doing anything while sitting or sleeping.
He is experiencing pain only while standing. Request you to provide some medication. He got the X-ray done. I am attaching it for your reference.