Welcome to the Forum!
Metformin is one of the most commonly used Type 2 (T2) medications and yes, nausea is one of the side effects. You will normally get used to Metformin in a couple of weeks. There is lots of information on this in the T2 Section, it is addressed in the Blood Sugar 101 thread, as well.
Read and learn all you can about T2. Good luck with your control and management.