Anxiety while pumping


So I am FTM and I had my son exactly a week ago. Because of being unable to regular his blood sugar and then losing weight he had to be 100% on formula since birth. We will be starting breastfeeding on Monday but in the meantime I have been pumping to build a supply and keep my body producing. I have noticed recently that I feel an increase in anxiety when I pump. I googled it and saw that it is an actual condition (for lack of better word). As a new mom I feel the occasional anxiety anyway but I was wondering if anyone else has experienced this?