Hey,
I took the GMAT exam yesterday on 25th and got a 640 (Q47,V31)! I was dammed

by the score cause I was aiming for something more in the 700's range. While doing the verbal section I was kinda having the feeling that it is not going as I planned it to be. There was this thing happened with me, I never used a sound isolating headphones ever while prepping for the exam or giving the mock tests, but during the real thing, I tried them at the start of both quant and verbal. I don;t know but that silence made me uncomfortable and difficult for me to concentrate, while quant went smoothly (according to me, but not very smoothly according to section score I got) but in verbal I struggled the most at the initial questions. The struggle was real I had to read each sentence (even the straightforward ones) to get the meaning out of them, It took me around 5-10 questions to get my pace back as by the end of the section I was feeling a lot smoother with my attempts.
So my doubts/questions are:
Could those headphones be really a reason for that downfall?
I am planning to go for a retake, is it a good idea as I have a month or two before the R1 rounds of applications starts?
How to go forward from here to 7__ score?
Mock Tests taken in 2 weeks time before the Actual GMAT:
Economist GMAT - 660 Q45 V35
Kaplan GMAT - 700 Q47 V39
GMAT Club (Seperate CAT) - Q49
GMAT Prep1 - 660 Q49 V31
Final GMAT Score - 640 Q47 V31
Thanks.