गुर्दे की पथरी की समस्या ( patient एजुकेशन  वीडियो ): https://www.youtube.com/playlist?list=PLVjlztKfktzpNJ-8YFMwedikCj88nMP4-

Usually 3.5 mm non obstructive stone in kidney will not lead to pain It’s very important to assess and diagnose the cause of pain If no other cause can be ascertained then CT scan of abdomen will need to be done At this age over the counter pain killers are not safe and should be taken only after consultation with a medical practitioner

Better to go for a ct kub plain first And take pain killer