So I have run into this issue when learning to create a base mesh of a head. In the following picture I have created a basic nose.
I enter sculpt mode and press ctrl + r to remesh the object, and smooth it out a bit
Here is a view from the bottom up where I try to start the nostrils.
Why is the draw brush drawing ovals instead of circles?
First time poster here. If there is any additional information I can provide I would be happy to.