First trimester problem?

Megan • So HAPPY!!! I'm aiming for twins, boy and a girl :D

So it seems that I feel better in the morning and during work (3-10 consistently) is when I start feeling like shit. Dizzy, standing up 7hrs straight, MASSIVE migraines, back hurts. And when I get home my man wants to be pleased but I'm so far from being in the mood he gets frustrated. When I rather make love in the am when I feel I can.

I quite honestly don't know what to do. Or if it will end.

Help?