Luna showed me all of these ways at least once (thankfully the peeing on the bed was only once, but I think it was more a cry that she wasn't happy with her current litter box situation). She showed me in many of these ways daily.I miss you, Lu.
Cats come into our lives to teach us about love, they depart to teach us about loss. A new cat never replaces an old cat; it merely expands the heart. If you have loved many cats, your heart is likely to be very big.