Hello everyone
I'm also considering to apply for additional time when taking the GMAT. Since February 2004 I have been suffering from generalized anxiety disorder (GAD) and major depression disorder (MDD).
Some of the symptoms of my psychiatric disability are; intense heart beat, headache, chest pain, sweat profusely and poor concentration. Therefore, the mentioned symptoms will have a great impact on me when I'm taking the test, which means that it is almost impossible for me to successfully complete the GMAT exam without extra time. Since the GMAT exam focus significantly on reading skills and problem solving under time pressure, I will only be able to complete the exam if the requested accommodation is provided.
GOSH, it is so unfair that most American universities see the GMAT score as the most important factor for graduate admission. I wish it could be waived but I'm pretty sure it will not because the score is so important for graduate schools.
The GMAT has caused me a lot of trouble. I hope you get your requested accommodation. Good Luck!