Please help me I am FREAKED OUT! What Is happening?

Ok. Now this is something that happens to me every one in a while and when it does it scares me sh*tless. Some examples of this is once i woke up to go and use the bathroom (note I am fully awake) and I come back out to go to bed and when I went back to the doorway into my bedroom I saw giant tentacles coming out of my bed and started flailing around at witch point I obviously ran in the opposite direction screaming in absolute terror. Once sense came back to me I warily made my way back to the doorway and I found that it was not there (no surprise) and I think that it is worth mentioning that In each of these examples that something that happened earlier in the day was in some way connected to the horror that occured. Like, in the previous example I watched the discovery channel program "Blue Earth" in witch squids were shown. Another example possibly the scariest one of all was in witch I awoke and found that there were lobsters crawling around in the bed with me. When I saw this I just bolted out of my bed and floor that my room was on and was screening bloody murder because of the fact that the lobsters didn't have rubber bands on their claws and the fact that they scare me anyways when they aren't crawling on me. And when I got the courage to go back they weren't there (Note: when they were in the bed with me I could actually FEEL them). And this related to the earlier day because we cooked fresh live lobsters for dinner. Any help and or knowledge on what and or why this scary stuff is happening to me is MUCH appreciated.