DeanBJJ,

It appears you have been doing online reading about concussions. That has trained your mind to respond to events that you think might be a concussion. Your mind creates the sensations that support the idea you suffered a concussion.

One thing you likely did suffer is a neck injury. That screwed you up in many ways.

It takes 60 to 80 G to cause a concussion. You cannot impact the boot cover at a 60G level. It moves when you hit it.

It sounds like you are in the UK. This forum has decades of posts of people in the UK who struggled to get good concussion diagnosis and care. Headway is an organization that is focused on helping head injury people find help in the NHS system.