Has anyone suffered with enlarged red blood cells during pregnancy? I had a letter from my doctor to say my blood test results were showing problems when I spoke to him he booked me in for another blood test as my red blood cells were too large, I've been feeling dizzy, constantly tired and last few days shortness of breath (last night was the worst I've felt and I've struggled to do my shopping today due to shortness of breath) my second blood test isn't untill tomorrow but I'm feeling so bad I don't know what to do with myself ??