first time mom, second pregnancy

My husband and I had an awful miscarriage at 7 weeks and we're expecting another baby and everything is going super great with the baby. However, I've been miserable. Absolutely miserable..all day, everyday. I've been so extremely unbearably sick that I had to quit my job, which hurt me so much but I kept having to be rushed to the ER and I just couldn't be dependable anymore. 
I have severe migraines and I have since I was a toddler and it seems to have worsened since pregnancy. I also have bad anxiety and with the shortness of breath, that has gotten way way worse, too. My body is weak and I'm just flat out lazy. I haven't done my hair in weeks because I physically cannot seem to find the energy to stand long enough without getting dizzy. It's very depressing and frustrating because I feel so out of my body and element.  
My SO seems to be getting very frustrated with me. My sex drive has vanished and he truly is bothered by it and I've explained that I wish I could have more control over my body but right now...I'm still trying to learn how to eat without throwing up. 
I'm just feeling really defeated and down 😞