Distributing your own papers in your thesis

I published three papers during my PhD, I'm now writing my thesis.

I have written three chapters, each based around each paper, but re-written so as not to fall foul of self-plagiarism rules. However, I've still used ALL of the figures from the publication in the chapters.

My concern is not really with this aspect of my thesis, though please tell me if I've misunderstood.

Finally, in the appendix, as refererence, I have included the PDF files of my published papers, exactly as they are from the journal website.

Am I allowed to do this?

If not, am I allowed to use my own copies of the paper (e.g. the versions submitted on the arXiv)?