So, I've exercised regularly my entire pregnancy with no problems. On Sunday I got up to take my dog on a run/walk. I only ran about 1/2 a mile and started feeling a little sick. I walked extremely slow to get home, but kept having to stop and sit down because I was so dizzy. Today, I got up to take my dog on just a walk, and I couldn't go anymore than a mile. I started getting nauseous and dizzy around 1/2 mile again and had to turn back around. I've exercised every day this weekend between Sunday and today and have been fine. I'm currently 32 weeks.. Anyone else experience this?