A number of people here see visions like this. A couple of times a month I see visions just as I am waking up. This has been happening for a number of years- 10+. See
http://www.christianforums.com/t7529622/ for a recent example.
The first time it happened I saw a cobra sitting on our bed with its back arched, facing my wife asleep in the bed next to me. I pulled out every rebuking Christian phrase I knew whilst trying not to wake my wife & freak her out.
Initially I thought this was some kind of demon. But I eventually saw it as a vision from the Lord, in that instance revealing that my wife was being confronted with deception in some situation. I have a had a few visitations from demons & I am getting better at discerning when it's some being there vesus a vision revealing something. Like any message I believe is from God I have to test it & I don't make major decisions based on a vision or dream only.
I used to often see strange looking animals like a chook with doves wings, humanoid figures with distorted faces (I think some of these may have been some kind of demonic manifestation), holes in the ceiling which turned into a room etc. For me these things will often move in a certain direction e.g. left to right, up or down, or ocilate.
Shapes & numbers are a little more rare for me. For numbers you may want to look at the following posts:
http://www.christianforums.com/t7279141/
http://www.christianforums.com/t7440208/
My dreams lately are haunted, as they almost always have been. I dream of the great tribulation and the 10 nations of the beast blaspheming God and raising up the antichrist. I dream of Babylon and its harlot, and I see the martyrdom of many Christians. I believe that a lot of it has to do with my own research on these matters, but it doesn't explain why I'm waking up and seeing these strange things.
It would probably be helpful for you to pull back on your research into the end times for a season. What about looking at some themes like the love of God, the finished work of Christ, forgiveness, the righteousness of Christ? We can always grow in our understanding of these. Then when your boat has stopped rocking & you feel more secure, you can hoist the flag again, keeping an even keel.
If you would like to create separate threads on any of your dreams or visions, people here could help you understand them.