Can't comment on the whooshing issue. But, I got hit hard in the head by a frisbee and had concussion like symptoms.

Both my neck and visual system got thrown off by it it turns out. I went to someone who does therapy for that, and with work on my neck + eye tracking the symptoms went away. Mental fatigue was a big symptom.

However, I did not have fatigue due to a particular angle, so that sounds different. But, I suspect you might have the issues I had as an additional factor.