"That" feeling

You know that feeling?  The one that makes you think that everything in your life is falling apart when there is really no discernable thing wrong.  It comes from nowhere and sometimes returns as quickly as it came and sometimes it stays for weeks and makes everyone around you concerned.  "Are you okay?" "Is there something wrong?"  "You seem so down lately?"  and you really feel that way but its embarassing because the only excuse you can give is, "because".  Well, if you can't tell the last few posts have been a result of this feeling and I still can't seem to shake it.  But there is always light at the end of the tunnel and I have some great people that are there for me when I need them and it makes me hopeful.  Perhaps I even feel a little hopeful today.