car is manual

honda city 1.5vtec. there were no warning messages in m. no loud noises, but i feel that there is something wrong with it. mejo maingay ang makina and the shifting of gears became a little bit rough

sana tlga nothing bad happend, car is barely a year old and sana naman there are no serious damages.

ronald_m where can i find the engine code?
any help will greatly be appreciated