From what you've told me, it's difficult to tell what is going on exactly. New infants do bring up mucus in the first few days of life and a little bit thereafter. Babies do sneeze frequently to clear their noses, and a little sputtering is expected. Real wheezing is not normal.
Make an appointment with your pediatric healthcare provider for a complete checkup. If these events occur more after feeding, feed her in the office so your healthcare provider can observe the behaviors that concern you.
Your daughter may need additional studies to be sure that her breathing and swallowing are normal and that her lungs are clear. It's time for a weight check anyway, but be sure to identify that this visit is about some special concerns too, so that enough time is allotted to get these addressed correctly.