Idk if this is a bipolar thing because i've had it my entire life- so before my bipolar symtoms began. Also don't know if this is completely normal and it's wtvr- just wanted to see if someone can relate.  
So, i'm a person with alot of empathy, i care about people deeply and i'm always there for anyone who needs help. But i've also noticed that i sometimes have very little empathy- like the second someone annoys me or simply says something i find to be off- i lose all empathy, instantly. I get it very randomly, like someone can in my eyes seem like a great friend, n then they say something that doesn't sit right with me- and suddenly i just don't care about them or their feelings. Like there's been too many times where someone who had feelings for me- somehow annoyed me, and i just lost all empathy and end up treating them like shit which then obvs kinda "breaks their heart" as some have stated. But i just can't find it in me, at those moments, to care. Even with my partner at times, like recently we had a simple discussion, he said something that sounded like he accused me of smth- and for awhile i just lost all empathy- i was about to go off, i didn't care if i was gonna lose the relationship over something so small. But after awhile we talked thru it and everything was back to normal.  


But yeah- idk what it is, but sometimes my lack of care for others feelings kinda scares me. I think im a rather nice person-- but how can i be if i play with peoples feelings or treat them badly?