Nina Dobrev landed in the hospital after a bike accident. The “Vampire Diaries” star shared an Instagram post on Monday that showed her having fun on a bicycle, but swiping left revealed a second photo showing her in a hospital bed with braces on her neck and leg. “How it started vs how it’s going,” she wrote alongside the photos. Fans commented on the fact that the 35-year-old actress was not wearing a helmet in the first photo. One commenter told Dobrev to “remember that vampire blood has no effect on you anymore.” In her Instagram Stories, Dobrev shared another hospital bed selfie, jutting …