Headaches and congestion

Brittney
I had my second <a href="https://glowing.com/glow-fertility-program">IUI</a> last Friday (08-21) and the trigger shot the day before cd12. I am 8 days past trigger and woke up to a terrible headache with head congestion but clear nasal passage. I never gets head colds. My appetite has also increased with carb cravings galore! Could this be a sign that my hcg is doubling?