I have carried a dx of treatment resistant depression. ADHD, and cPTSD for at least 20 years now. I take many different medications, including stimulants, atypical antipsychotics and antidepressants. Initially, it was just 'garden variety' depression. I'd feel down, and medication/therapy helped me live a pretty normal life. For the past 6 or 7 years though, I can go for a few months being pretty stable, then sink into a depression/psychosis with little to no warning and end up self-harming or lashing out at family.  A couple of times, I have believed meds weren't helping me, and gone off them. (with disastrous results). I have been suicidal several times within the last 2 years, and either completely emotionless or a crying wreck. I don't find pleasure in almost anything, and any kind of change upsets me. Sounds bother me, and sometimes I just can't talk. I will just sit and stare into space. I've had a few episodes of feeling 'bugs' crawling on my skin - that has been rare but has happened a few times, and usually when I am suffering.

I was talking with my psychiatrist today and she kept asking me about whether I was having delusions, and the extent of them. I was honest with her and said they are very negatively affecting my life. She kind of got a look on her face like she was concerned, but she didn't say anything. After the appointment, I got online and started researching. 

I'm starting to believe I may have late-onset schizophrenia (I am 49), as these symptoms have appeared or intensified within the last few years. 2017 was an extremely stressful year, and that seems to be when it all started getting a lot worse. The following years haven't been any better.

I know Reddit can't diagnose anything, and I need to talk about this to my psychiatrist and therapist, but I wanted to get opinions and experiences.