Hello all,
This is my first post on this forum despite visiting it on a multitude of occasions for reassurance, the physics of a concussion, etc.

I suffered my first concussion (mild) in November of 2018 after being headbutted in the back of the head while going up for a header, and my symptoms were characterized mainly by a dull headache throughout the head and a foggy brain. I thought I recovered in a matter of days, returning to sport (soccer) in a week's time. A dull headache persevered throughout this timeline, but I felt enough cognitively stable to continue sport and my schooling (in retrospect quite foolish).

I suffered my second concussion in April of 2019, this one far more severe. Sprinting to a certain position in the box, I ran full-speed, head-first into the back of opposing player's head as he backed into position. I was facing slightly away from him, so my nose made first contact. The next thing I remembered was awaking on the ground on the opposite side of the field. Though uncertain if my nose fractured, it was bent out of shape and the trainer on sight neither diagnosed me with a concussion nor suggested anything about my nose. At the time, I only felt really a headache around my nose and forehead. The trainer said it was ok to continue play provided that was my only symptom (buffoonery). I continued playing (more buffoonery), and the worst that happened was slide-tackled and spun in mid-air and upon landing, it felt like my eyes lulled.

The next day, I went to a physician, he x-rayed my nose(not broken), and I informed them of my headache. I was informed it was unlikely I was concussed. The next day I played in another game. I spent the entire day unable to focus at school, with a severe headache, brain fog, and I did not feel like myself. I, however, was in extreme denial. In the game later, the ball was punted in my face twice, in both instances feeling quite dizzy after the hit but continued play (I am quite ashamed of my disregard for my health).

Since then, I have been suffering from PCS. At around 16 and half months now, I have given up my sport and live with the same timidity and reticence that the quite of anxious of us do. I have, however, taken upon a more academic life and am quite happy with myself and my life. I do, however, get anxious from time to time about a head bump or jerking motion, but I recover and attribute it to anxiety mostly, as that usually has distinct symptoms.
I come here today because I'm somewhat perplexed at the sensation I've started to experience when I walk. Going down a hill, my footstep tends to be heavier and in doing so, a sharp pain will course through my head if I walk on my heels. It is brief and then subsides into the subtle forms of the more general symptoms of my concussion as listed previously.

I was wondering how much experience people have with this and what it signifies. For the record, this is not an "am I concussed" post, but it does hurt like hell even if ephemerally. It feels like a sub-concussive hit my head (for instance a strong header in soccer with a headache that lingers). I have noted in the past that when I maintain good posture, I can still feel the "bouncing of my brain" but it does not hurt. I have a sharp pain when pressed slightly above the last protruding bone in the neck and my neck and shoulders are incredibly stiff, for the record. Thank you and recovery to you all.

Tyler