Hey there, canines are horrid teeth poor thing.
I’d carry on giving the meds but prob try a catnap of 30 mins about 9.30am then long nap about 12.30/1pm, try and keep her from getting major OT.
30 min naps can also be OT or pain related so I’d medicate at nap time too, the refusal may just be missing the relaxed sleepy window of she’s OT x