Kidney stones

Has anyone here had kidney stones? I have two of them (2mm each according to the cat scan my doctor had done) and so far I think they’ve passed down from my kidneys and now I’m waiting for them to pass. The pain was excruciating while they were moving. I’m just wondering if anyone could tell me what kind of pain I’m still in for since google doesn’t seem to be helping with that much. I’m just nervous about feeling that same kind of pain again and I’m looking for others experiences with this. Thanks in advance!