The term is usually restricted to those who seek medical and surgical assistance to resolve their difficulty. Hermaphroditism or Intersexuality is where the physiological sex is ambiguous. The situation may, or may not, be accompanied by various degrees of gender dysphoria. There may also be effects from the hormone balance in the foetus or the placenta. Homosexuality or Bisexuality is a situation where sexual attraction is felt for people of the same rather than the opposite sex.
Bisexuality is where sexual preference is for either or both sexes.
In general, those who are homosexual or bisexual are quite satisfied with their gender and body. Most men who cross dress are not homosexual. Unfortunately, finding a name for something does not go any way towards explaining it, but some people do feel more reassured to find there is a name for people like them. Those who could be described as gynandromorphophiles and gynemimetophiles are strongly attracted to TS and TV people. Those in this situation often need as much support as any other transgendered person.