What you're describing sounds similar to a Craniocervical Instability (CCI).[1] It can be confused with Chronic Fatigue Syndrome. I learned about the condition

What you're describing sounds similar to a Craniocervical Instability (CCI).[1] It can be confused with Chronic Fatigue Syndrome. I learned about the condition through Jeff Wood's blog posts.[2] 1: https://en.wikipedia.org/wiki/Craniocervical_instability https://en.wikipedia.org/wiki/Craniocervical_instability 2: https://www.mechanicalbasis.org/ https://www.mechanicalbasis.org/