<human>: Condense the text into a few key points

We have been dating for a little over 2 years.  I think we have a fantastic relationships we rarely fight or argue we have an awesome sex life his friends like me, my friends like him, parents like me and my parents like him.  He started classes again and I know that will make his days much more hectic and I work 40 hours a week.  We used to hang out maybe 5 days a week.  Now with classes starting it's much less.  I saw him Sunday and I probably won't see him until Thursday. 

I feel like we have not been talking as much since his class started two weeks ago and I thought it was just because we are both busy but today we were texting a bit and he said he wanted to lay down he didn't feel well I asked him what's wrong and he said he feels like shit about everything.  I ask him if we were okay and he said I guess I'm okay I asked him to elaborate and that it made me a little nervous that he didn't give me a straight answer and he responded I just feel like shit I'm going to laydown my head is pounding.  I said okay feel better and that I love you and he said he loved me back.

To me this is just really strange.  His birthday (23)is tomorrow and I think he said he sometimes feels blah around his birthday because he is getting older etc...

About two weeks ago we had this big conversation about him finishing school and he said that I am his driving force and he wants nothing more than to be with me and that he loves me more than anything and I have no idea how much he loves me.  That made me feel really good...but now with his vague responses tonight and us talking less I am a bit concerned.  Am I being stupid?  I can't help but feel hormonal right now because I'm PMSing so I'm probably making a mountain out of a mole hill.  What do you all think?  Your posts are really appreciated.  There has been no indication or conversation or anything that would lead me to believe that he is unhappy.  We truly have a great relationship and we have talked about a future. 

Thank you.
<bot>: boyfriend started classes so we are seeing each other much less I asked if we were okay and he gave me a vague strange answer and now I am on edge.