"Feelings" in the mammalian mode, like empathy - yes, all mammals and some birds.
"Feelings" in the sense of nerves and awareness of pain - even more so. Simple life forms likely feel pain most profoundly. They just don't think about it, as we do.
"Feelings" in the sense of nerves and awareness of pain - even more so. Simple life forms likely feel pain most profoundly. They just don't think about it, as we do.