I (43F) been diagnosed as bipolar twice: once in my late teens and once in my mid-30s.  I have never participated in any medications, have had very little therapy in my adulthood.  I don’t have the resources or the support system so I just don’t do it.  Anyway, when bad things happen, like an argument with a loved one or just life problems, it seems to hit me harder than everyone else.  For instance, a friend close to my family ghosted us a few years ago and I’m still very angry and sad about it.  Everyone else is totally over it and moved on but I still cry several times a week.  I still plot revenge.  I still can’t even log Facebook, even tho we aren’t Facebook friends, because we have friends in common and I see this asshole in the pictures of my other friends.  And I know that person is an asshole and the thing wasn’t my fault at all, but I’m bitter about what I went thru because of it.  And I know he average person wouldn’t still be so affected years later.  My children are over it, forgotten already, and my husband is over it.  I try to keep it a secret that I still harbor so much hatred.  

So my question is this: is that my bipolar?  Should I approach it from a mental health standpoint?  Or am I just being petty?  About everything.  I’m using the friend thing as an example but this is actually quite frequent.  I’ve gone thru phases where I thought I was selfish, mentally ill, petty, truly wronged.  I just don’t know what to do.  I worry that I’m just an entitled bitch and stupid things happen to ppl everyday and they somehow manage to get over it.  How come I’m so sensitive?  What do I do to be less sensitive?