Why am I so exhausted?

Typical wife...I've been married 15 years.  Typical mother of two...did soccer, football, track, band, wrestling, chaperoning.  My husband and kids are my life.  Somewhere along the way, I got tired.  And am still tired.  I'm sure eating heathier would help, but it's honestly alot of work!  I've definately gained a few pounds over the years.  The constant driving kids and errands around, grocery shopping, house cleaning...when do I have time for me?  Time for me to exercise?  I enjoy sleeping so waking before everyone...I just would rather not do.  But it's catching up to me.  The thicker midsection...the larger sizes...no energy.  I hate pills.  And I'm getting old...will hit 36 this year.  Maybe I'm bored with my life?  It's really a wonderful life.  Love my husband...he is so cute and the kids make me laugh everyday.  But what am I doing here?  I've been out of the military for over 8 yrs now.  Haven't worked for 4 of them.  I want to do something, but what?  I want to make a difference somewhere, but where?  I don't have a college degree, but I was an IT professional at my peak.  I'm sure that is all out of date now.  I was talking to my mother today and realized, I miss my family.  I am lonely here.  We just moved here from Italy where when you are part of a squadron...that is your family.  I know I haven't gotten to know everyone here yet, but I'm lonely.  Now is the part where I should tell myself to suck it up...your a grown woman from Texas and we don't whine.  I have a good eating plan, just need to put forth the effort and get on with it already and get off my ass and run or something!  Ride your bike after you fix it!  I can do this...and I need to do this for me.