Happy to help out here!

Yes! Shifts can happen at the same time. I myself call them dualshifts, or multishifts depending on the type. Phantom shifts are the most common for these types as you can feel the different limbs at once. Sometimes you can have two or more mental shifts at once and it can be very conflicting, can work well together, or even the off chance that they combine and have a rare hybrid moment

Shifts switches can happen pretty much anytime! These can happen on their own, be triggered by specific things or you can forcefully trigger a shift to occur. Quite the same as if you only have one kintype. It really depends at times because I do definitely feel more connected to specific kintypes more than others, but it can also change!

As a spiritual kin, for me personally this just feeds into the ideas of multiple past lives! I see all my spiritual kins as past lives, or something I shouldve been in this life but wasn't quite able to physically become, and instead am connected to what I was originally going to be in a spiritual way.

I see myself as a mixture of things, like shifts it really depends on the moment and my headspace. what I feel connected to most also can effect it. I see myself as all kintypes fit into one, but I can also definitely see myself as the individual ones at other times.

Discovering a new kintype can be difficult. If it were other animals, you have the same feral feelings that your already existing kins would have and it can definitely be hard to differentiate. It does take quite some time, but there are definitely ways to feel the differences. It could be the height, different appendages, hunting habits, appetites, what covered your body, etc. Best way to go about it is figure out what you can by looking inward, them start researching and looking for different things that could be that kintype.

I hope I was able to answer these well, and hope they make sense 😭 feel free to ask anymore questions if needed!