The junior account collects tier points, even though there are no junior tiers.
I think it has been established in another thread (long time ago) that those tier points do not carry over to the post-junior account.
Otherwise, I guess many juniors would instantly turn platinum at the age of 18, as there is no expiry during Junior years.
Those 127k points you have, I assume that is equal to your lifetime tier earnings. Most likely they will reset very soon.