If ever you don't think you have enough info or your not sure etc, get a second opinion.

If your doctor is one that you see all the time, know/trust etc, I would go back and maybe have a double appt and as them to go through it all in detail, unbtil you are satisfied that your questions have been answered.

Was this a GP or a paediatrician? I would def. get a referral to a paed as well as whichever kind of specialist the doctor has reffered you to.

I say this assuming you were given a specialist referral for the physical therapy? If not ask about that as well.