My dog Pontouf is a Shih Tzu and when we first got her in Janurary she was about four weeks old and she had the hiccups all the time! My other Shih Tzu Bijou when we got hima bout two years ago he got the hiccups to but he doesn't anymore!!! Don't feel alone!!! I don't know why it happens and stops when the dog gets older but its nothing to worry about!! My e-mail is [email protected] so e-mail me casue it seems thta we both ahve shih Tzus!!!! Please e-mail me!!!!