I had one about 20 years ago. Extremely painful. They gave me 4 shots of morphine and told me I couldn't have any more it would kill me. It didn't help a bit. Then they gave me something they said was stronger than morphine. It didn't help much. The doctor told me that if I drank a lot of water I'd be OK. If not I'd be back. I drank a lot of water for years.
I got another one a year and a half ago. Went to the ER. That was a mistake. They didn't give me anything for the pain until 6 hrs later when it was over. They did run up thousands of dollars in bills. They said I had one left that was 3 mm in size. For 6 months nothing happened. I felt like I was a ticking time bomb.
I saw Dr Oz say red wine would dissolve them. I started drinking 1 glass before bed. Three weeks later I felt small pieces coming out. Feels like somebody dragging a knife though your body. After a few months I stopped drinking the wine and the stones stopped tearing my insides out. Always wondered how much was left if any. Last week a small one slipped though. Ouch!