The cramps overtook Darryn Peterson, making the potential No. 1 pick in June’s NBA draft fear for his life. After enduring Kansas coach Bill Self’s weeklong workouts last September, something went horribly wrong and Peterson had to be taken to a hospital in an ambulance. “I made it to the training room and just started begging them to call 911,” he told ESPN . “They were trying to get a vein to get me the IV, get me back hydrated. But I was cramping so hard they couldn’t get a vein. “I thought I was going to die on the training table that day.” Darryn Peterson during the NCAA Tournament. Charles Wenzelberg/New York Post The cramping issues permeated his lone season in Lawrence, a sometimes brilliant campaign plagued by cramping and others injuries that forced him to miss games or leave contest early. Now, with the draft lottery two days away that will determine which team potentially selects him No. 1 overall come June 24, Peterson has an explanation for the mysterious cramps.…