<human>: For all my short life, until the second half of college, I embraced being introverted. I did all the things I loved- reading writing, day dreaming, drawing, among other solitary tasks. I got energy from being by myself and I enjoyed myself. I was never antisocial, liked being in small groups of people, and managed just fine.

Lately, I have become the opposite. If I am not around and engaging with big groups of people, I get fidgety, paranoid, and depressed. I have tried studying, or reading, but can only go though a couple of pages until I feel anxious, with a need to be with a group of people. I then put down the book and do that. I do not know why and what happened and was hoping someone here would have advice. I miss the way I was, and I miss my hobbies. I just cannot get in the mindset to do them anymore.

I apologize if this seems to be a petty problem, but I feel like my personality has gone through a 180 and it has thrown me for a loop. Any words would be appreciated.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Was content being alone, now am not. Confused, and if anyone has experienced the same thing, would like to know what is up.