Matt Roloff is «back in action» but not before enduring a scary ordeal on what was supposed to be a «routine upper endoscopy.»The star took to Instagram on Monday and shared a photo of himself looking into a camera and smiling while lying on a hospital bed and wearing his hospital gown. The 61-year-old explained in the caption that this all went down sometime last week.«Last week was a bit rough,» he wrote in his caption.