If it makes you feel any better (in terms of even a sad thing like pregnancies lost)... my first two pregnancies that ended in miscarriage had ZERO symptoms, as well. Nothing. Nada. Felt normal. That should have been my warning sign, for sure.
My third, and first, successful pregnancy with my son, as I was still waiting for my post 2nd miscarriage period, my first symptom was nausea... well, actually, it went like this...
We went to visit a friend in Liverpool, and we went out to eat lunch and this place had MEGA portions. They were (men) both struggling, and I said, "Oh, yeah, I got this. I'm finishing it!" And I did. They were pretty stunned.
A couple nights later, I spent all day making this big vegetarian shepherd's pie, and when it got down to eating it, I ate most of the mashed potato but stopped. I just felt way too uncomfortably queasy.
Then that morning, I woke up and felt like I was going to throw up. I told my husband I was calling into work because I thought I had a stomach bug. He left for work, and I called in sick to work, then I laid in bed going, "UGGGGGGGH. I cannot believe I have a stomach bug!" followed by, "UGGGGGGH! When in the hell am I going to get my period?! I just want to start over again..."
Then I laid there and thought, "Oh... uhhh..."
Had one test left over from my second pregnancy, and it was super positive.
Heeh. :D
So, feeling sick? I can relate, after a pregnancy loss, that is SUCH a reassuring sign!