I Am A 37 Year Old Male, Never Had Health

I am a 37 year old male, never had health problems before. But the last few weeks, and more frequent the last few days, on my left side between my ribs and my hips, toward my back, (I am not big, 178lbs 5'11") my side hurts bad for 20-30 mins at a time. I went to urgent care to get care, they did a cat scan for kidney stones, tumor, ect. And they didn't see anything. It hurts bad and is coming back often. Last Thursday, I was out doing a project in the sun and started throwing up and go a migraine when in the sun, I don't think that is related thou. A few days ago, my calves on my legs got real sore almost like cramps. I drank tonic water as suggested by a friend and that seemed to cure that and slow my side a tad. I made an appt for Friday at a Dr.'s office.