think they even have rudimentary ways of chemical signaling one another that could be seen as communication but I don’t think they have feelings as we use the word and I don’t think they’re intelligent on any level.

Just to play devil's advocate.... The more we understand about consciousness and the more we study animals like invertebrates, the more we keep finding out our previous assumptions keep getting proven wrong.

Terms like feelings, emotions, and intelligence are all open to interpretation and debate.