Overthinking and getting lost in our thoughts is pretty normal I'd say. I used to get lost in my thoughts all the time because they just pop up and lead to another and another until I've realized I've spent an entire hour staring at nothing and thinking. It's like. Intense day dreaming but literally about everything and anything. Scenarios that will never happen. Things that shouldn't matter and then I'd wonder why they seem to matter so much to me. It was to the point where I felt like I was living inside my head and missing out on life and it was so frusterating because I couldn't control it. sorry for rambling but I had this stuff on my mind