last night, i was woken up by a figure, it resembled one of my friends, but she was not real, she walked across my room and shook me awake, she woke me from my dream, the time on my digital clock was 3.21am or 1.23am im not sure but it was 123, anyway, i was hallucinating, and the scary thing is, she shook me physically, and then walked back into the shadows of my room and was never seen again, should i be worried?