Symptoms Suddenly Stopped

Hey everyone!
So I'm almost 8 weeks pregnant and I previously was experiencing extreme nausea and vomiting ALL THE TIME! I couldn't keep anything down and was losing weight. 
About 3 days ago that all suddenly stopped. Like completely. 
Of course I'm glad I've been able to finally eat something, but I'm also a little worried. I haven't had abnormal cramping and no bleeding so that's good. 
Should I be at all worried??
Thanks in advance for any responses!