Not Feeling Well...Reassurance Needed

Amy
Feeling really yucky (short of breath, dizzy, fatigued) today. I'm 18w6d, so this was unusual because I've been feeling good for several weeks. Called my OB, they said didn't sound like a baby issue and sent me to my primary. 
Primary suspects a uti, but ordered a bunch of other blood work. I kinda wish the OB had me come in, because I'm super worried that whatever is going on is not good for baby. Just need a little reassurance. :)