I had a similar dream not too long ago. Was dreaming, went to sleep in the dream, had an OBE like entrance into my inception dream, where something was floating me along, also to the right. I consider myself pretty good at dream control, so I was particularly disturbed by my complete lack of control in that situation. I fought against it and managed to wake myself up back to the original dream.

Demonic Parasite - Dream Journals - Lucid Dreaming - Dream Views

If it happens again, I'm going to let it take to see what happens.