updated yosemite and iPhoto is gone

I have update to Yosemite 10.3 and my iPhoto is greyed out (it was not updated) - states outdated version and I can't download newer option - when I do I get a "not available in the US" pop-up. I have read other suggestions, but none apply to me thus far. iPhoto is not listed under my purchased apps in app store - I'm assuming because it was preinstalled? It is also not hidden - I checked. So now - I don't have iPhoto and photos isn't an option in the app store either. Not sure what I should do next