I would associate myself more with Lycanthropes. Usually on the three nights of the full moon (I know traditional lore has transformations occuring whenever, but the moon seems to do it for me), I feel diffrent. I dont sprout fangs and howl, however I do notice an increase in certain behaviors. I feel more aggressive, higher levels of arrousel etc. This  happens even when I am not even keeping track of the Luner cycle.
  Does anyone else have examples of this? 

I'm not sure that I am necessarily eitherr lycanthropic or vampiric. I have noticed though depending on the phases of the moon I can be a bit lunatic ( in the traditional sense of moon related madness or worship of the moon) I mean I don't necessarily get all like  crazy or anything but I've noticed I feel more alive and with more energy. I have also noticed that I have psi-vamp tendencies. while yes to an extent blood turns me on and stuff and I understand it's seeming benefits I tend to more often than not draw energy from other people. Whether it be from their auras or actual energy depends on what my need it. I also draw a lot from the energy their emotions project. This is in part because of my natural empathy, but I don't think this an entire explanation.
So do I think this lycantrhopic or vampiric? I don't know but it would be a good start for an explanation because I honestly don't think it could be all due to any of my medically/scientifically explanable conditions. In otherwords I am open minded to other possibilities.