Some weird thing happened to me a few nights ago. I didn't have the chance to get a good recall but I remember some parts of the dream. I don't know what I was doing but suddenly I started to fight with myself to become lucid. I remember how exactly I looked down to my hands and kind of forced performed a reality check, the one in which you try to touch your hand with the other hand, I mean with the finger and it should tresspass the hand as if it wasn't there. I didn't perform other RCs because I was convinced I was awake. It was a pre-lucid dream.
This means I performed a reality check and it failed, does it happen often?