Fantasia Barrino was rushed to a North Carolina hospital last night where she was treated for a "medication overdose," this according to WCNC.com. According to the report, Barrino was taken to Carolinas Medical Center-Pineville around 8:55 PM ... the report says her condition was not life-threatening. According to the report, it's unclear whether the OD was intentional or accidental. As we pr…