Autobrewery syndrome is rare and probably has more to do with your diet and antibiotic use than consuming a few actively fermenting drinks.
Some drinks like pulque are traditionally drunk that way and that's why they can't be shipped long distances. So if its been done by other cultures for thousands if years, I'm not a doctor, but I'm gonna wager its fairly safe.
Mine was brought back from about this state when a friend gave it to me, so recovery is possible.
Mine thrives with indoor lighting and a little natural light, so don't fret as long as its not full sun or in a closet it should be fine.
Warmth can just be "not really cold" for people. Anything above 15C is probably passable. So long as its in your house it shouldn't perish, it might just slow its growth if you don't have a heater on high.
Humidity might be an issue and over or under watering. If you live someplace where the air is very dry it could be challenging as you'd have to dote on it to keep it in the sweet spot water wise.