Morning sickness: please tell me I'm not alone.

My first appointment is November 7th. I'm almost 10 weeks. I started a new job on October 5th and immediately told them I was pregnant. I found out after accepting the job. Since being there I have missed 3 days because of morning sickness. It has been bearable; crackers before getting up usually helps, also ginger ale and eating mint or sour candy, but there are some days that none of that works and I just can't make it. It makes me feel like a failure as an employee and that I'm letting my coworkers down. Does anyone else feel this way? Please tell me I'm not alone. Any advice on what to do or how to not be so hard on myself?