Signed off from work for HG even though it's more stress related

Kirsty

Im 11 weeks 4 days today and just been signed off work for 2 weeks as I've been struggling with nausea, exhaustion and stress at work. I personally don't believe I can say I have HG as I've had bad nausea but no vomiting. The Dr put it down to this as it's pregnancy related but how do I explain this to work. I'm happy as it gives me the rest that I need but its not strictly because if the nausea. Feels awkward!