I currently live with my partner in a separate city from my family and I usually thrive on alone time. Most of the time when I’m home, my partner is too but we’re spending our time in separate areas of our apartment, and I prefer that. 
Recently, I’ve gone home for the holidays to visit my family and I’m staying with my mom. Lately, I’ve found that I get really anxious when I’m alone, even if it’s only for a small part of the day. My mom and her partner go to bed quite early and I’m used to staying up until usually 2 or 3 in the morning, so I’m then typically alone for nearly 6 hours. I see my friends when I have some time, but lately I feel this sinking feeling when I’m alone in this strange environment and feel like when I go back home to my own place, it’ll feel the same here. 
Does anyone else get that when they’re in a different environment?