'Fear Factor' Mom PISSED Over Last Night's Show -- My Son's No Oedipus!!!

"Fear Factor" producers DIABOLICALLY edited Tuesday night's episode to falsely suggest the mother-son team have an incestuous relationship ... this according to the mom.

Monica -- the ex-bodybuilder who teamed up with her son Matias on last night's premiere episode -- tells us, FF editors used a clip of her and her son hugging to make it look like they ... touch each other too much.

Joe Rogan even took a shot at the duo on the show ... joking, "I hug my mom every time I see her ... but then I let go."

Monica tells us, "Last night when the show aired, I was SHOCKED. I am appalled and disgusted at the comments of people on the show about Matias’ and my relationship and how it seems ‘inappropriate’ for a mother and son. Are you kidding me?"

Monica adds, "In no way, shape, or form am I inappropriate with my son ... I’m broken hearted. Joe Rogan ... shame on YOU. You are a father. How dare you talk about my son that way?"

Monica says she's probably not gonna sue -- but she wants everyone to know she's pissed.