Sleep? What's that?

So, I have been keeping a little journal of Blake's sleeping problems from the last couple weeks. Here it is.

Feb 5th woke up 5 times in the middle of the night from 12 am on

Feb 9th woke up 5 times again from about midnight on

Feb 21th woke up constantly from about 12 am on until 5 am. Slept from 5-6:45 am. Complained of the fire dream. (when I say constantly, I mean every 5 minutes...literally)

Feb 22 woke up about every 5 minutes again from midnight on

told me "I just couldn't make it mom."

Feb 23 woke up around 10pm (1 hour after he went to bed) and continued to wake up every 2-5 minutes until about 5 am. Slept from 5-7 am. I even brought him into my bed thinking it would help. Nope.

Feb 24 woke up about 12:45 am and continued every 2-5 minutes until 3am. Came in my bed and woke up one more time until 7am

So that makes six times and 4 nights in a row. Took him to the doctor yesterday. Doc couldn't find anything physically wrong...said if it got worse (I don't think it can) or continued than we would have to look at other things. Possibly something psychological???? All I know is I will never complain of the lack of sleep I got with my newborns....this is much, much worse.