Anxiety through the roof!

I haven't felt nauseous at all today or yesterday and I know I should be grateful but I'm just worried that means something is wrong. With my last baby I had HG and was so nauseous I needed home health to put in an IV that stayed in my arm from 10-22 weeks so I could administer fluids twice a day to stop losing weight. My OB said I had a 50% chance it would be the same with this baby. I thought I was headed there because up until Sunday I felt so sick I was already taking my meds from last pregnancy. Now nothing. How do I take this blessing for what it is and not worry myself crazy over what it could mean. I haven't had any other negative signs like cramping or bleeding so I know I'm probably fine, I just can't control my anxiety.