Jada Pinkett Smith sparked major health concerns with her “shocking” look for a rare date night. The actress was spotted out with Will Smith for the first time in six months, where she was photographed looking “exhausted” and “super-skinny” amid their “open marriage” agreement, RadarOnline.com can reveal. The longtime couple, who share kids Jaden, 26, and Willow, 24, were seen dining with Jay Shetty at Crossroads Kitchen in Calabasas, California on Thursday — where Jada was photographed with bleached eyebrows and a shaved head. Jada also appeared to look incredibly tired as she clung onto Will…