Dream About Post Apocalyptic City With Pokemon

I was at my previous apartment, it and the town had all become run down. Almost post-apocalyptic. There was an old tree that had fallen and rotten under the moist conditions. Rain and humidity were very much common in this environment, both in dream and real life. But it was far more prevalent in the dream. It served as a great hinding spot for hinding resources. At some point, my sister and I were young enough to need a caregiver. Our parents had both died and we were being looked after for years by my coworker, who in real life, is actually a Philosophy teacher. He was always kind to us. My sister and I were young adults and were out in this harsh landscape of what the city had become. We ran into a few pokemon, some I recognized, others I didn't. There were evolved forms of Koffing, the smoke pokemon. And a few electric-type that were familiar only in the dream. It sortof looked like Electebuz meets Elekid. For some reason, in this dream, pokemon evolution was achieved by combining two matching pokemon instead of gaining experience or any other means. So, we just went around evolving the two pokemon mentioned earlier. While walking along one of the sidwalks in some broken down part of town, found out that he had suddenly died, my sister tried to prevent me from seeing the text message telling me. I assume this was to protect me since I'm the youngest sibling. But I had told her that I had already seen it. We had become old enough not to need caregiver (very young adults/teens), but not too old to require support and guidance from an adult. After this my sister and I suddenly aged rapidly. We became old women. I ended up guiding a tour of kids around my previous apartment and showed them the local flora and fauna that had started growing after all the devastation. I was even teaching them survival since this whole place required it. One little boy pointed out the little jar of stones I had collected. And I just sort of glazed over the subject. The old tree that had fallen and rotten earlier had now grown a lichen inside of it right under the bark and around the exposed inner surface of the tree. It started falling apart the more you kept digging.