3rd class medical with POTS

[Mox]

My daughter is a Loadmaster and was previously on flying status. She had an issue where she passed out due to poor nutrition/dehydration, etc. she went to WPAFB and did the standard tests there to try and get her back to flying.  During the tilt-table she passed out again. A total of 2 times in her life, last one was 18 months ago. She has an FAA 1st class medical and has been working on her commercial/CFI over the last 8 months with no issues. 
 

Has anyone heard of a waiver being approved for POTS, or how long the process typically takes. We haven’t seen anything related to POTS in the waiver guide

 

TIA

Edited April 19 by Mox
Misspelled