“Outlander” star Sam Heughan has had it with the haters. In a long post on Twitter early Friday morning, the 39-year-old actor vented that he has faced six years of “constant bullying, harassment, stalking and false narrative” that has left him emotionally battered. “I am at a loss, upset, hurt and have to speak out,” says Heughan, who has been self-isolating in Hawaii since last month because of the coronavirus pandemic. “It’s affecting my life, mental state and is a daily concern,” writes the star, who plays strapping Jamie Fraser opposite Caitriona Balfe as his time-traveling wife, Claire, in the Starz series, now in its fifth season. “My costars, friends, family, myself, in fact anyone I’m associated with, has been subjected to personal