WHAT ABOUT EITHER IN THIS SITUATION!!!
''They don't know what's wrong with her''
''And they don't know what's wrong with me,EITHER.''
PLEASEE HELP ,I LEARNT THIS ABOUT EITHER
I WILL BUY EITHER THAT OR THAT''
billmcd has confirmed that you are right in your understanding of one use of either.
The word is also used with negative constructions with a meaning similar to as well, also:
Alan: I like Mary.
Donald: I like her, too. I do, too. (or: so do I)
Alan: I don't like Joyce.
Donald: I don't (like her), either. (or: neither do I).
A couple of suggestions for future questions: 'Help!!' is not a very helpful title for a thread.Try to use something that will give a clue to what the thread will be about, such as 'Problems with either.
Please try to avoid MAKING POINTS IN CAPITAL LETTERS. This is not necessary.