Levator scap chronic muscle spasms

[physiobob]

Hi there. Perhaps you need to look at the cervical spine (neck) as a possible issue in this. Especially he upper neck and C5 as these give rise to the innervation of the levator scapulae.

Origin - Posterior tubercles of transverse processes of C1 - C4 vertebrae
Insertion - Superior part of medial border of scapula
Artery - dorsal scapular artery
Nerve - cervical nerve (C3, C4) and dorsal scapular nerve (C5)
Actions - Elevates scapula and tilts its glenoid cavity inferiorly by rotating scapula

Maybe it is also worth looking at the rhomboids and their relationship with the dorsal scapular nerve. It seems that taping techniques (which may be put an irritated neural structure at rest) are having an effect and that it is not the muscle but the nerve that is irritated.