Hi fellow lucid dreamers!

I have been following this forum for a while now and it helped me with my journey to lucid dreaming.
I started with lucid dreaming in january 2015 and had 20 LD until today and over 200 entries in my dream journal (1 night, 1 entry, multiple dreams).
Some lucid dreams were longer, some shorter.

However... the last 5 lucid dreams were short. As soon as I became lucid, everything started to go black, and more black, until I jumped to new dreamscene, where I lost lucidity. I do not remember waking up between them.

Did anyone have the same problem and how to overcome that darkness/blackness?