Let me explain:

I was a 31E stationed in GTMO, Cuba and was Honorably discharged on a Chapter 8 in November 2007( in the IR until 2014, so there is a large chance that I will be called back to Active Duty anyways). During my enlist I always had trouble passing my 2-mile due to frequent back pain and would have periods of blackouts and sometimes seizures. Yes, I did seek medical advice but they could never explain what was going on. After I was discharged and had my daughter my medical issues got worse and I had to go through many hours of testing. They found that I had scoliosis and I had herniated my brain into my spinal canal( yes it baffled me too) they explained that is what was causing my medical issues. I have recruiters contacting me all the time to reenter Active Duty and I have explained my current medical status and they say that it is no problem and that all I need to do is get a physical. I know for a fact that I cannot a physical even though things have improved greatly. I really want to reenter the Army but I am afraid that I cannot do so.
Questions:
If I don't pass the physical is that it?
Waiver?
Permanent Profile?