Hi,
Ideally, it would make sense to provide some background (including age, timing and ailments she is suffering from etc.) and help set the context.
Going by your birth-details (assuming the information is accurate), it looks like your mother might be ailing for a while now. Her Roga-Karaka has been active since second half of 2015…wondering if she has diabetes and other lingering niggles. If true, it would make sense for you guys to focus on getting diabetes in control.
There after consider offering special prayers to Lord Dhanavantri (along with her wearing his energized pendent) and Goddess Arogya Lakshmi, with unwavering faith, bhakti/devotion and a strong Sankalpa.
Take care…