Jack Endino has been in the press an awful lot in the past few months. With the 20th-anniversary celebration of Nirvana’s Nevermind, everyone wants to find out just how he recorded their debut album, Bleach. But before he handled that project, Endino was jump-starting his producing career with EPs for Soundgarden, Green River and Mudhoney, whose debut single, “Touch Me I’m Sick,” gets this month’s “Classic Tracks” treatment. Interestingly, this song was a case of both…