Yup – been there done that. First time was probably about 12 or 13 yrs. ago. Did not have the typical pain just some discomfort and other symptoms so it took them 8 months to figure it out. The stones were too big to pass so I had a lithotripsy (not sure of spelling) done. That’s were they sedate you and lower you into a pool of water. They then shoot laser beams at the site where the stones are. This crushes them up to make it easier to pass. It was after I got home that i experienced the PAIN. But I’m here to tell the story- B”H. I then had the same thing a year and half later. Same treatment also.
Prevention depends on what kind of stones they are. Though drinking a lot – especially water – is good, i believe, in preventing most stones.
Since you asked, i’m assuming you have them? if you do, refuah shelayma.