Clear nipple discharge

I’ve been getting clear nipple discharge whenever I squeeze my nipple. I’m not pregnant, I’m not on any medications or any type of birth control, I’ve never been pregnant or had an abortion I’ve taken a plan b two years ago if that means anything but that’s it. This started around January of this year and I’ve seen a doctor and took a bunch of blood test and everything came back healthy but I never got a scan just a feel up and they said that there wasn’t any lumps and even the doctors are telling me they don’t know why it’s doing that and they’re just classifying it as normal but everyone I’ve asked or read about the situation they say it’s not normal so I don’t know what’s going on. Maybe one of you guys experienced something similar or have some sort of solution.