Under the bright lights in front of a sellout crowd of screaming fans at loanDepot Park in Miami last March, one of the Savannah Bananas was struggling. The Bananas were facing the Party Animals in the first MLB stadium game of their tour.  Jackson Olson, the team's second baseman and social media star, can pinpoint when he knew something was wrong.  "I'm standing out there and I [had] this really out-of-body experience where I was talking to myself and trying to get myself out of it," Olson says looking back a year later. "But it didn't even feel like it was me talking or me moving. I wasn't really controlling my body and it was a very weird feeling. That created so much anxiety for me not being able to feel everything. I'm like am I having a stroke? " He had a panic attack. He began experiencing them a month earlier and this one wouldn't be the last. It forced him out of the game after the second inning.…