Aaron,

Welcome to NeuroTalk.

What you are experiencing is not uncommon. The movement on rides at the fair can be upsetting.

You need to seek professional help.

It can be difficult in Canada. Where are you specifically? Some provinces and areas have better access to care for TBI. The Ontario Neurotrauma Foundation may have some resources. The hockey teams usually have better TBI/concussion care resources.

Your sleep is a critical issue. Daytime fatigue is usually related to poor quality sleep. Poor quality sleep is normal after a TBI.

You mention your neck. Neck inflammation can cause headaches, poor sleep, sleep apnea (breathing stops do to disrupted signals to take a breath), poor blood flow to the brain and much more. Sleep with straight head and neck posture. I slept in a recliner for much of my first year once I realize how screwed up my sleep was in a bed. I still use my recliner as my rescue when I am struggling to sleep soundly.

There are more issues to address once you have a chance to consider these.