Hi Timber, Welcome to HealthcareMagic Forum.
You haven't mentioned what exactly is her Health Issue? Which Diabetic Pills are you on? The Diabetic Pills are known to cause Weight loss
. Kindly get her examined by a Diabetologist
so that he can examine her and Prescribe Medications which suit her along with ARV Medications.
Hope I have answered your Query, I will be available to answer your follow up queries.
I Wish her Good Health.