Nipple thrush

I might have nipple thrush but not sure my newborns mouth is clean no white on tongue or anything in her mouth. But I am being carful my nipples are sore and they are a light pink I don’t have all the symptoms but I was doing some research and they limit a lot of food not to eat. I’m a giving my daughter breastmilk in a bottle maybe my nipples are irritated with my pump and using the wrong size I am also almost 3 weeks pp. what did you eat if you ever had nipple thrush