You are over thinking every little event. Recover is a roller coaster, even without bumps and stresses. Rather than try to find a cause for every little change in symptoms, try to just move forward. 17 hours of driving would set me back for a week or two. I used to plan for a setback if I needed to drive to California.

Tinnitus and head aches are not a cause for alarm. They just are part of the roller coaster. It is not uncommon for someone with PCS to experience either for up to a year or more as the roller coaster slowly levels out. Nobody can predict the time line.

Reading can cause a head ache. You may need to moderate your reading.

Try to get help with your anxiety. You need to rest without anxiety.