Valmiki Ramayana Sundara Kanda Sarga 19 Shloka 21

उपवासेन by fasting, शोकेन due to grief, ध्यानेन due to brooding, भयेन च and threatenings, परिक्षीणां a wasted, कृशाम् emaciated, दीनाम depressed, अल्पाहाराम् ate little, तपोधनाम् rich by austerities.

She was wasted and emaciated through fasting and grief, depressed due to brooding and threatenings. She ate very little but was rich with austerities.