Lolo Jones says three different men have stalked her over the past year ... and their actions have been so terrifying, the Olympic hurdler and bobsledder said it's all "altered my life."
The 40-year-old explained her terrifying situation in a social media post on Monday night ... saying each man "crossed the line" and put her and her friends' safety in jeopardy.
Jones said one of her stalkers actually "broke into the Olympic training center and stayed overnight in hopes to find me."
She said another one "has continued to harass my friends in attempts to reach me.