There is an art to turning the deeply personal into something an audience can recognize, laugh at and perhaps even feel a little less alone about. Las Vegas artist Shannan Calcutt takes that idea to the stage with Things I Shouldn’t Tell You, a candid, wickedly funny exploration of midlife, womanhood, sexuality, identity and the unexpected indignities of “second puberty.” Presented by THIRD Street Arts & Media Incubator, the newly expanded production runs through October 11 a