The same happens to me after social interaction with a large number of people in the same room. I avoid social interaction as much as I can. But it isn’t something you can easily avoid if you’re working or following a training. I remember being back home from my professional training and not being able to sit or lay down for a few minutes because of how extremely hard was for me to stand up again… I love learning but I’ve always be very autodidact so online learning or with teach yourself methods works best for me (of course just for things I’m passionate about). I want to get the needed experience and skills to be able to work from home in the future.