Richie Incognito was suffering an "altered, paranoid state" when confronted by police at a Florida gym ... "and believed ordinary citizens were government officials that were tracking him."
That's just one part of the disturbing police report describing the bizarre events at Lifetime Fitness in Boca Raton, Florida on May 23.
TMZ Sports broke the story ... cops were called the gym when another patron said the NFL lineman snapped and attacked him with a dumbbell.
When cops arrived, they asked Incognito what was going on and his answer was troubling .