In 1990, she founded REGARD, a national, volunteer-run organisation of disabled lesbians, gay men, bisexuals and transgender people.
[1] Sells was a ward sister at Barnet General Hospital when she became disabled as a result of a splinter in her finger, which led to septicaemia, a multi-day coma and the loss of the finger.
She re-trained as a teacher, completing a Certificate in Education at Middlesex University.
She raised her children with her ex-partner Dr. Dilis, who was the biological mother of another son, and coparenting with her ex-husband.
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