hmm now I know what you mean. I'm wondering if the same thing is happening to me. I've had a lot of assignments this week and didn't get a lot of rest. I would shoot 80% in practice but now I shoot like 40% in practice. It used to feel like "alright this feels smooth" then it would go in. Now it feels like "what the, this isn't my shot.." It really feels like I'm shooting it wrong and I end up airballing hardcore(never airballed so much in basketball in my life. I would always hit the rim or something).