I think I'm lonely

I wake up some days and just know I'm not entirely here. I woke up today and felt cripplingly lonely.  It didn't feel like me though.  It felt like I was feeling for someone else.  My therapist said I'm hyper-empathetic and that may cause some of my moods and anxiety... then again, the therapist before that said I have bipolar and schizophrenic "tendencies", which sounds very unscientific,  but I guess that makes sense given how little we actually know about our brains and minds. Regardless... I think I like it? But I hate it? I wish more people felt more for more people... maybe if everyone cared enough to get over themselves, things wouldn't be so painful. I started crying and all I could think was,  "it hurts", but idk what "it" is...