She had what we thought was a stroke a couple if weeks ago. Since then has had funny episodes of appearing disorientated, frightened and in last few days was obsessively hewing at her coat. Had stripped fur from her two front legs 
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Vet agreed the suspected stroke was just that and chewing is due to brain injury. So no real treatment and expected us to lose her in next month or do anyway. So agreed best course was pts. Dh took her but I said goodbye before she went.