I'm 8 weeks as well, and I've experienced shortness of breath for the last week or so. I am a teacher, and all day I just dream about being home in bed.
Yes I'm 8weeks 5 days. I have been feeling ALL of those symptoms. It is normal. I was not able to get out of bed for two weeks but ever since Monday, most of my symptoms have gone away. Which is making me REALLY nervous!! I fear that a loss of symptoms indicate miscarriage. Its like I wish I was feeling like crap again just so I can be reassured that everything is okay. But yea chills are actually a symptom if pregnancy, I researched it.