Blood work normal

This is all too familiar.  Blood work came back normal... so it's not thyroid, I'm not anemic, not diabetes, nothing that is seen in any of the tests they ran.  I've scheduled an MRA for Tuesday at 4:30.
And once again, I'm terrified.  This dizziness, exhaustion, headaches, and pain are too much for me this time.  I got dizzy laughing at my children this morning.  Who expects their 3 year old to say "Mommy, I'm learning how to squish gently!"  My husband was teaching her to "squish" her brother on the couch, something he likes.  If I can't even laugh, then everything starts to become not worth it.  Sorting the clothes to see what James has outgrown (he's in 18m clothes already!) took a lot of effort and I had to stop a few times.  I stayed up late last night for Bunco, perhaps that's why today is so bad.  But I got ~6hrs of good sleep.  So it shouldn't be this bad. 
James has been cuddly/clingy lately.  And Carolyn wants me to do everything (not Daddy).  They always say kids know things innately.  I've been trying not to show them that I'm struggling, so they must be figuring it out on their own.  What is going on with my body? 
I'm feeling nauseous this morning too.  No headache, just feel like I'm spinning, sometimes the room seems to be moving as well.  Jon took the kids to the park so I can rest.  So I'm off to lay down.  I just thought it would be important to note how bad things feel this morning.
Dear God, I know you won't let me deal with more than I can handle.  But please, I'm at my limit.  I just want to enjoy my family and feel normal.  No pain, no dizziness, just run and play with the kids without worrying that I'll pass out.  Be with my husband as a wife should, without being so exhausted that I just collapse into his arms at 8 at night.  To feel normal again and function normally.  I just don't know how to get there.  And I pray that brain surgery isn't going to be the answer.

It's back

And really, it's worse than ever.  Each morning, about 1.5-2hrs after I get out of bed, I start feeling dizzy and it stay with me pretty much the whole day.  I also seem to be having quite a few headaches.  I'm able to drive, play soccer, go for walks pushing the stroller up hills.  But if I take a break or sit down, I feel horrible.  So on Tuesday I'm heading to the doctor.  Starting with new one, at a primary care office.  Perhaps there are things we didn't check out last time.  Maybe some simple vitamin or hormone imbalance, I don't know.  But the last few days have really sucked and it's sapping my energy.  Taking care of 2 kids (1 and 3) is really hard right now.  Hopefully I'll get some answers this time around.
Of course my worst fear is that what the last neurosurgeon termed an incidental finding was more than that and has grown in the past 2.5 years.  I guess we'll find out over the next few weeks.