Utterance: What is my matter!
Target: Two targets:
What is my problem?
What is the matter with me?
Discussion: Since the only noticeable problem with the utterance is a single word, it is tempting to call this a lexical error, but the presence of the often-used 'what is the matter with me' casts a little doubt on that analysis You could make either call, but the speaker felt ike it was a syntactic blend, and when in doubt, go with the speaker's intuition.