LOS ANGELES (Reuters) - Actress Demi Moore suffered convulsions and seemed only semi-conscious after smoking an undisclosed substance before being rushed to hospital earlier this week, according to the tape of a medical emergency call released on Friday. "She smoked something, it's not marijuana but it is similar to incense. She seems to be having convulsions of some sort," a female friend of Moore told emergency services when calling for an ambulance on Monday. "She has been having some issues. ...