I usually don't remember my dreams (or, as some people would say, have no dreams) because of this one medication to, well, stop them. PTSD. I haven't been taking it lately, so I do remember more dreams now. Sometimes, when taking the meds, I would dream when I took a nap.
But I digress. I do lucid dream, but I still have nightmares. I'm trapped in the nightmare, but I can make it so someone else is getting the brunt of whatever the nightmare is about. I would never do it in real life, but my mind obviously doesn't want me to hurt.
I had a recent nightmare, actually, and it's still very vivid in my mind. It took place in the middle school I went to, mostly in the art room. It was a jail, and the art room was for criminals that would never see the light of day again, even though everyone was told that you had a chance to be free. It was torture, and I dreamt about people I haven't thought about it years. I also dreamt about my brother, that he was there, but when I got to that room as a criminal, he died from... well, I'm not going to give the gory details, but it scared the poo outta me! I've had plenty of dreams like that before, where my brother is not in a good situation.
I know why this happens, though. He, well, I haven't seen him in two years. I hadn't seen him for three years previous to that, and I know he stole, went to jail, and does drugs. He told my dad that he tried freakin' heroin. I was in college when my parents had contact with him, but when I was home, he never visited because I know he was ashamed of the way he lived and the choices he made, and he didn't want me exposed to that sort of thing. He lied to me (nothing new) when I finally did see him, that he had a job, was healthy, and stopped drinking and doing drugs. God, I don't want to talk about this anymore, it's making me cry, I'm sorry.

The only weird dream I always have would be all of my teeth started falling for no apparent reason, it kinda happens once per month. Got used to it.
I always have weird dreams, and I remember them quite well and write them on my tumblr just cause they sound very weird, but here's one:
I once had a dream that it was nighttime and me and the guy on my signature was trying to get away from these people were trying to kill both of us, so I drew a rectangle on the wall/swiped left and then it transformed into a door and I swiped the other way and it changed back into a wall, and I kept doing this to get away from the people, and I kissed him just to kiss him.
I'm not on meds, but my dreams are usually weird like that.

I used to have a reoccurring dream when I was younger where I would be walking around my house at night and there would be TVs everywhere, with Kermit the frog on it. He would be talking really slow and saying things in a language I couldn't understand and would be watching me, then suddenly would be talking about seeing me. I have no idea why it was Kermit the frog.
Those dreams stopped at some point, but I still have weird dreams every now and then all involving TVs, sometimes just static TV's somewhere or people walking around with TVs on their head. No idea why the focus on TVs lol.