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 : &quot; 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.&quot; 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 &quot;I have attained Budhaship&quot;.
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.
Thế self Buddha mentioned in “ No self “ is a unchanged , everlasting , pẻmanent self . Thế self everybody are clinging is a temporary self . We have many lifetime , for each lifetime we have each self . So via many lifetime we have many different self depending on our past karma , our background of that life . 
Self is delusion , we have been reborn because we attache to our self . Immediately after enlightenment , the Buddha uttered this pane of joy : 
Through many a birth , I wandered in samsara , 
Seeking but not finding , the builder of the House 
Sorrowful it is to be born again and again 

The architect was craving or attachment ( tanHà ), A sẽ
Self- created force , a latent element in all . The rafters of this self-created house is defilement ( kilesa ) - the ridge pole that support the rafters is ignorance ( avijjà) , thế root cause of all defilements . The shattering of the ridge-pole of ignorance by wisdom results in complete demolition of the house . With the demolition of the house , the mind attains the uncondition which is Nibbãna 

Oh house builder ! Thou art seen - 
Thou shall build no house again , 
All thy rafter aérea broken .
Thy ridge - pole is shattered 

My mind has attained the unconditioned .
Achieved is the end of Craving .