As in all things diabetic and especially with pumping, Your Mileage May Vary. Each pumper needs to develop their own personal "database" of experience to develop a troubleshooting plan unique to their own treatment regimen. Keep your needs and experiences in mind when viewing advice on line.
Take corrective action if you suspect there is a problem. If you suspect an infection, monitor it closely and don't hesitate to seek the assistance of your health care team. Infections affect some individuals to a much greater degree than others and they are never worth risking.