Did Buddha ever think about himself?

After attaining Nibbana, Buddha had realized that there is no self. However due to practical difficulties of communication, he had to use personal pronouns like 'I' , 'me' , 'myself' many times during conversation. My question is: whether Buddha ever thought about himself? Because if he thought about himself then he must have had a self. You can not think of yourself and simultaneously claim that there is no self. In the book, Manual of Buddhism by Hardy Spence , it is written how Buddha thought about himself. From p 181 : > After the repetition of these stanzas, Budha thought thus : " I have > attained the Budhaship ; I have overcome Mara ; all evil desire is > destroyed ; I am lord of the three worlds ; I will therefore remain > longer at this place, which has been to me so propitious." Thus > reflecting, he remained in a sitting posture upon the throne for the > space of seven days. It is clear from the above translation that Buddha had a self because his thoughts bore witness to the self and declare that "I have attained Budhaship". This proves that personal pronouns used by Buddha were not just used for convenience but were honestly projecting the reality that there is a self. In thoughts there was no necessity to fake self for sake of communication.