Former Thai Prime Minister Thaksin Shinawatra was moved to a hospital from prison around midnight Tuesday complaining of chest tightness and high blood pressure, Thai authorities said, after the ousted prime minister returned home earlier in the day from self-imposed exile.Doctors at the Bangkok hospital diagnosed Thaksin, 74, with multiple underlying health issues including heart disease, based on his medical records from aboard, the hospital's Department of Corrections said Wednesday.According to a source close to the former prime minister, his condition was not serious.Thaksin on Tuesday…READ FULL ARTICLE