By Jason McDaniel Catcher Carlos Corporan said before Friday’s game he was “maybe 50 percent” as he continues to recover from a concussion caused by a foul tip that struck his head Monday in Arlington. Corporan, who’s still suffering from headaches, fatigue and dizziness, called it a scary situation, and said he was glad the Astros forced him out of the game or he probably would have kept playing. Then he might be in a worse predicament. “I’ve been hit so many times, and this is the first time I feel like this,” Corporan said. “I’m telling you, many, many times – many times – (with) the position I play, [...]