The news outet reports that she's in the ICU, but her family thinks she is a fighter (an insider told TMZ she's currently being fed through a feeding tube and is getting a pacemaker). She will have a procedure later today.
Nearly $2,500 dollars has been raised for the family in a Facebook group, which has also provided updates on her health.
Denise, 61, is most known for blowing up like a blueberry in the hit 1971 movie. She's also appeared on The Brady Bunch, The Electric Company, and Dark Shadows.
We hope she gets well soon.
This story is developing...