Bruce Willis' daughter Tallulah is "so grateful" for her emotions despite her dad's "tough" health battle.

The 30-year-old star has shared a tribute to her famous father - who is battling frontotemporal dementia - and admitted while it's difficult, she would rather be struggling than "disconnecting".

Alongside photos of them together, she wrote: "Hey I love this guy so much and feeling feelings is tough stuff, but I’m so grateful to let them flow through me now instead of disconnecting from it!"

She didn't reveal when the pictures were taken, but simply said they were "from the forever archives".

Tallulah recently opened up on her own autism diagnoses as an adult, having struggled with sensory issues for years.

Appearing on the 'TODAY' show, she said: "I was misdiagnosed for many years. So only at 29, got my diagnosis, which is very common, specifically for adult women."

She found it a "relief" when she got her diagnosis, having spent a long time feeling like she was "broken".

She explained: "I thought I was very broken.

"So to learn that the elements of myself that I felt were maladies or wrong, or just too much for this world, are actually okay and they just require maybe a little bit more tools, you know?"

Finding out she is autistic has given her "more grace" for herself and her loved ones.

She added: "As well as, I think, my family and other people, hopefully, who learn about this, you know? Just to be a little more gentle and compassionate with themselves."

Meanwhile, Tallulah's mother Demi Moore has admitted she tries not to be "attached" to the old Bruce when she visits her ex husband, whom she was married to from 1987 to 2000.

She told 'CBS Sunday Morning': "The important thing is just to meet him where he's at, as opposed to being attached to who he was, how he was.

"Because, again, that only just puts you in a place of loss versus being in the present, meeting him where he's at, and finding the joy and the loving of just all that is where he is."