Hi Jennifer
Saw your post here also after years later. It seems your symptoms are very similar to my symptoms although now mine has migrated to giving me pressure on the neck and bottom of skull and head affecting my ear and eye.
I notice when certain parts of neck and shoulder muscles are stimulated, brings on some relief for a short time. It’s like a congestion on the upper chest and shoulder area that is affecting the head and like you said lower spine and pelvis. And yes the neck muscle pulls.