Re: Can getting cut with some corroded copper be a problem?
No, 'cause it hasn't been a day and you might haven't shown symtoms.
It's very hard to diagnose anything over the internet and we can't tell you what it is for sure - you use this forum at your own risk. If I was a doctor then it would be easier, but there is no way we can tell for certain.
Best is to go to a doctor in real life just to make sure, because we can't help nearly that much.