PS

*dwm - to be giddy; have pain in the head (SED I No. 11ᵥ)

Akkadian
dâmu - to be giddy, stagger (CAD D 80, AHw. 146)
Arabic
duwām- - vertigo, giddiness in the head (BK 1 753, Lane 937)
Unless from dwm ‘tourner, voltiger, etc.’ [ibid. 752].
Jibbali
edmím - not to sleep because of ophtalmia pains (JL 39)
the relation is somewhat questionable