I've had a really good baby. A dream baby. No colic just some fussing around teething. Sleeps through the night. But she's been really fussy lately and the only way to stop is to walk around and the minute we sit she's crying again. We were up all night. And she is teething. I'm paranoid something is really wrong only because it's a complete character shift for her but then again she is a baby. She's 7 months could her top 2 teeth be worse than the bottom. Has anyone gone thru this? She has been gassy too. And she will be laughing and playing one second and crying the next with a short attention span. Any recommendations?