Ok while out today I noticed an annoying mark on some of my pictures, further instigating led me to believe dust or some kind of something on the sensor.
The below advice I hope will help others if this happens to you as you need the sensor to be viewable before cleaning:
You can clean the sensor on a canon 1100d/t3/x50 by first turning the mode dial to P then press the menu button, then navigate through the menu to the second yellow wrench icon. use the arrow keys to go down to clean manually. the screen should say “Mirror will go up, Clean the sensor.” you will want to click “OK”, then the mirror will go up and you can clean the sensor off.