Since you are at least able to challenge some of your thoughts (such as the aliens), at least that's a good thing, although it's hard to fully convince yourself. It is technically a paranoid thought, since it has no basis in reality. I would keep an eye on it. Although of course I don't know your patterns, sometimes these fixations can come and go, without crossing into it being indicative of a full-blown psychotic episode. A month ago for the span of a few weeks straight, I was fixated on feeling that I was going to die, if I slept and paranoid about my medication. I kept thinking my family was going to be harmed or that my house would burn down. Luckily, those thoughts died down, although I have some residual paranoid symptoms. I am no longer as preoccupied with my false beliefs....knock on wood. So just be sure to monitor, but I wouldn't panic.

So sorry that you've been struggling. Actually, New Year's was a trigger for me too, when others seemed to be in a great relationship, and I was alone. When I temporarily jumped into something on a dating site, it didn't fulfill me at all, because it wasn't the right person and further reinforced my unhappiness. Body image issues have been affecting me as well. Just saying that I completely empathize with you. (((Hugs)))