I would definitely retake GRE, but After a while retaking Pre-Reqs doesn't really help in upping your GPA. Its like pulling a train, if you take 100lbs off, it will help but not THAT much.I would rather take a year off, get a full-time job, make some money, repeat some of the prereqs, and maybe take the GREs over again.
Hang in there. I have thought about PTA as well, and master's programs in other areas... when it comes down to it, PT is the career I want, and I've decided I will not take 'no' for an answer.
Consider this: many PTA programs are pretty popular right now and have waitlists to go through before you are even matriculated. How long do you want to wait to be a PTA instead of a PT? With the time and effort it takes, I would retake any classes that you have low grades in and really strive for improvement there.
That's what I am doing, and I refuse to give up.
I would probably retake a general chemistry 1 class if they let me; or just go for something esle like pharmacy.
But I shouldnt have a plan b, Im a very confident person and I just need to sit down and solve the whole Chemistry book and physics book. I should be okay.