anthony, honey, i swear your post above looks like you are talking about one of your dogs or something...
in any case. high fever and vomiting, as well as pain, headache and other things you describe correspond with chikungunya virus, very common now in most of the provinces. i suggest that you skip doxy and treat your woman with plenty of hydrating fluids. have her drink agua de coco, tea and water. buy hydrating powder in a pharmacy, 50 pesos per packet, different flavours, to be dissolved in one liter of clean water. alternatively use one liter of water with 6 teaspoons of sugar and half a teaspoon of salt. squeeze in an orange for better taste.
you can use some acetaminophen for pain and fever. she'll be better in few days. a public hospital will diagnose and treat her for free.