Psychosis and hallucinations comes under disturbed patterns of thinking:
This comes from the NHS website (national health service in the UK). Not all people with BPD will experience this, but it is fairly common, looking at one text, they found 20-50% of BPD patients reported psychotic symptoms. It is not part of the DSM-5 though, so it's not necessary for diagnosis. The people I know who do have BPD all seem to experience (likely stress related) psychosis to more of a degree than those I know with other conditions. People with other mental health conditions also experience it of course, but that does not mean that it is any less real.
It's good to know that it can be comforting for you, I think my friend often jokes about things and makes light of the funnier situations because she wants to make sure everyone knows she's aware she's a bit nuts, so that people understand and don't hold those times against her. It must be really hard, having the imbalance of "sanity", doing something one day which then seems totally mad the next. My boyfriend is also likely BPD and is looking to get diagnosed, though it is very different to my friend in how he responds, and I think if he has it then it's milder in terms of how destructive it is. I have had mild BPD symptoms, but I think they are more to do with my PTSD.
I love talking to other people with pure-O who didn't realise they had it: Talking about slightly funny mental illnesses, if I explain to someone my type of OCD, and how I will be having a great conversation with a new friend, really bonding, it's awesome, and then suddenly will have the image in my head of slapping them, and see their expression of pure shock and distrust with me having the knowledge and disappointment that I totally fucked up that conversation. I have never slapped someone in the middle of a conversation, and I likely never will. Just the same as I haven't "accidentally" driven into a wall, or opened a car door while moving, or thrown my phone or camera off a high place while walking. I still have those uncontrollable thoughts. Some people just think it's hilarious, but it's amazing how many people will suddenly go "I do that!!", because they probably just thought they were weird and put it out of their heads.
It's kind of funny when you think about how socially awkward you really are inside your own head, but it is a really annoying disorder to have. Sometimes I fear being accidentally racist, sexist, inappropriate, and lately I have had a weird fear of being attracted to children. Of course I am not attracted to children in the slightest and there is nothing to have given me this idea, but the idea of it still scares me, and it actually in a weird way has started making me feel uncomfortable seeing pictures or videos of children which come up online. I think online specifically because I usually only see attractive adults online, so seeing children in that area freaks me out. Just like "what if I accidentally run that person over because I decide to swerve into them?", there's that "what if I accidentally decide to molest someone?". It will never happen because I am not going to randomly lose control of my mind to some inner demon.
The physical part of my OCD is that I touch corners (and sometimes not corners). This can be corners of tables or objects, or even people's shoulders, knees, hands or faces. It's something to do with the sound that scratching makes, the chalk board kind. Corners I think because they're sharp, and I somehow want to smooth them over. Same as if a sharp object touches a surface, I want to "wipe" it away. As a child this meant that using fountain pens was a messy experience. I also have a few weird little ticks, hard for me to tell what it is I actually do though.
Love your attitude. It's very dry and honest. My mother has the same issue...fearing she's attracted to children. Seems a bit odd for bipolar? I've always wondered if she had pure-O with psychotic features.
Anywho, the human brain is definitely a crazy, complicated thing. I think most people are abnormal in some ways. We're just too complicated for that many people to be truly okay, haha.