I was reading your post for the 3rd time and I'm still a bit confused with the dates that you posted. I am going under the impression that you ran out early of your vyvanse and tried to change the date on the following prescription to get the meds early....is this correct?
If it is, then yes, the pharmacy will have a copy of the prescription and yes, they will more than likely notify your doctors office. They said there was a problem with the date so I would think that's what they would ask the dr. You've gotten yourself in quite the pickle. IMO....I would resign yourself to the idea that you may get in some type of trouble for this. Since you didn't GET the prescription, possibly not legal trouble, but if they notify the dr that you changed the date, then she could refuse to continue treating you. Are you giving thought to the fact that you ran out early, which usually means your taking more than your supposed to? Why are you doing this? Do you have a problem with these pills?
Your story seemed to be written from fear, and I believe you have every right to be scared. You tried to do something you knew you weren't supposed to and basically got called on it. I'm not sure being pro-active would help the situation either. I'm sorry to be the bearer of bad news but it's NOT the end of the world. You won't die.