The (few) details:

Adult book

Title might include the word yellow

A short book, maybe 200 pages

Paperback

Read at least 15 years ago

Novel set in Southeast Asia

A woman wanders, losing herself, maybe also a child. Odd, sad, poetic, confusing. She may be starving and mentally ill, badly treated

I hope that’s enough to unearth the title! That would be wonderful.

Thank you.