valetudinarian

A sickly or weak person, especially one who is constantly and morbidly concerned with his or her health.

Chronically ailing; sickly.

Constantly and morbidly concerned with one’s health.

Being in a poor state of health; weak; infirm; invalid; delicate; seeking to recover health.

A person of a weak, infirm, or sickly constitution; one who is seeking to recover health; an invalid.

Also valetudinary.

Of infirm health; seeking to recover health; sickly; weakly; infirm.

A person of a weak or sickly constitution; one who is seeking to recover health.

sickly, infirm, of ailing health

being overly worried about one’s health