"Feral" blood, presumably, indicates wild, untamed passion.  Wrist and neck are pulse points - therefore consciousness of an increased heart-rate..  A pressure that seems about to break forth on account of someone absent.

Breathe, nostr:npub1dsdgn279kkzrmuxxq2v686l26k8u97hjkve342zlpqcfsqk4xtpstkl2mp , and commune with the stars.  Lest you burst.