When I crinkle my nose after having Juvederm, I see two white blobs under the skin. Is this the Juvederm?

   Juvederm may have produced the whitish discolorations.  If this is the case, more hyaluronidase can be injected.

Without a photo it is very hard to be sure, but...  It does not sound like Juvederm. 

As you know Juvederm is clear and the "tyndall" effect we sometimes see is actually bluish grey in color.  If you had hyaluronidase injected,  it should have dissolved.  Could it be Radiesse, which is white and doesn't break down with hyaluronidase? Cartilage, which is in your nose is also white, so there may be another explanation for what you see.

Without examining you or seeing pictures, it's difficult to know what might be causing the whitish areas that you're seeing on your nose after the Juvederm injection.  It could be Juvederm, but this would be an unusual location to get discoloration from the treatment.  It's also possible that your issue may be caused from something else.