1)
Verse 5 already taught that he was 32 when he became king!
1.
Malbim: (a) Even though Yehoshafat appointed him king when he was 25, seven years before Yehoshafat died, those years are not counted towards his kingship. (b) Our verse teaches that Yehoram's kingship ended when he was 40 [and Yoshvei Yerushalayim appointed his son Achazyah to be king a year before Yehoram died].
2)
What is the meaning of "b'Lo Chemdah"?
1.
Rashi: All his days were bad and with illnesses. "Re'eh Nasati Lefanecha? ha'Maves v'Es ha'Ra" (Devarim 30:15) and "Ketzar Yamim u'Sva Rogez" (Iyov 14:1) were fulfilled on him.
