Look, all I can say is that u might have lost it 4 a bit. Stuff like that happens, but dont get upsessed with it. This is recent, Brett Myers, a Phillies starter, went down 2 the minors 2 get his throw back. He lost the ability 2 throw fastballs, splitters, and changeups. He was brought back up just 1 day ago. He dropped his splitter completely, and picked up a slider. His changup was fine, and his 12-6 curve was perfect. But 4 some reason, he still couldn't throw his fastball on target.
Look, what Im trying 2 say is that last year and every year before that he was great. This even happens 2 pros.Dont worry, with practice, u should get it back. Maybe u just arent realizing that u made a slight difference 2 the grip by accident, and that when u threw it up there. And u got confused and thought u lost the throw.