Not all OCD compulsions are visible. Many people do “silent” mental rituals to calm anxiety or feel certain, and they can be just as exhausting as physical compulsions.
Repeating phrases or prayers internally until it “feels right”
Mentally reviewing conversations or events to check for mistakes
Reassuring yourself in your head (“I’m not a bad person,” “That won’t happen”)
“Undoing” a bad thought by replacing it with a good or “safe” thought
Counting silently or doing mental math to neutralize fear