This will be the second time this has occured in my life, and i'm unsure what it is, and have yet to see a doctor concerning it. I'll do my best to describe the issue. I am a 22 year old male.
The previous evening I was suddenly experiencing fairly severe lower abdominal pain, the pain was considerably stronger when i was standing and walking. While standing and walking I was even experiencing very slight naseau. The abdominal pain I was feeling was most prominent around or slightly above my pelvic bone on either side of my body. Towards the front of the abdomen. After about an hour or two I began shaking uncontrollably, by that time i was lieing in my bed with a blanket on, I couldn't manage to get warm.
I went to sleep rather early due to this, despite the fair amount of pain I didn't have much trouble getting to sleep. Woke up to urinate later, the pain had subsided, the shaking and feverish symptoms subsided, i could feel on my sheets that I had been sweating quite a bit in my sleep. This morning at work I feel fine despite some tenderness in the same areas on the lower abdomen.
I'll note here that almost this exact same scenario was experienced by me a few months prior, maybe half a year ago. The only difference is that I didn't experience the feverish symptoms. It took about a day or two for the tenderness in my abdomen to subside.
Could this be minor stones being passed, or otherwise? At this point i'm most likely going to be seeing a doctor concerning it soon enough, but any further insight would be appreciated.