OK I’m not sure what happened but my current theme somehow got corrupted on its last update. I have substituted it for another similar theme for the time being but I will revert back to the original one once it is fixed.
[EDIT] I have actually grown to like the new theme…it works better in my eyes as the colour scheme has been reversed-with the ‘darkness’ surrounding the blog with the ‘lightness’ in the inside-which suits the Dyspraxia image better. The outside as how others see it, and the whole picture as we see it! The font size changer still works-but if you encounter any problems them please let me know!