[1][8] Her father is the late Professor Sekabunga, a well-known pediatric surgeon, who practiced at Mulago National Referral Hospital in the 1970s and 1980s.
She credits that aunt for paying her school fees and being the inspiration to pursue medicine as a career.
[9] She went on to study medicine at Mbarara University, followed by internships at the same institution, and at Lira Regional Referral Hospital.
[9] She was then admitted to Makerere University to pursue a neurosurgical residency at Mulago National Referral Hospital, graduating in 2018.
As of February 2023, Nalwanga was a member of the faculty at Uganda Christian University School of Medicine.