Neutral pelvis can feel uncomfortable when you first find it. This is often because your posture is out. If it causes you pain or discomfort, please don’t do it. Find a position that’s comfortable for you and exercise in that. As you restore and strengthen, your body should align better. Try finding neutral pelvis again (you’ll be cued to do so during some exercises) and see if it feels different. Once it feels more comfortable, try using it for exercises.