Bonjour L'emploi "d'avoir fatigué" est très rare... Il faut utiliser le verbe être pour exprimer la fatigue... On dit donc : "Je suis fatigué(e)" selon qui parle.

The best way to well understand the usage of the French verb "fatiguer" is perhaps to refer to some examples shown in the following forum discussion, as given below: forum.wordreference.com/showthread.php?t=393442 In particular, for the case given in your question, it should be "je suis fatigué(e)", where the word fatigué(e) is transformed as a past participle, an adjective. (The additional "e" given in bracket is for feminine speakers in this sense.)