Martin Lewis has expressed his heartache after not being able to accompany his wife Lara Lewington to hospital on Thursday.READ: Martin Lewis makes surprising revelation about wife Lara LewingtonThe This Morning money saving expert took to Twitter to share his agony with his followers, writing: "Strange leaving home today to walk to the studio, as Mrs MSE (@LaraLewington) is off to hospital for a shoulder operation."I'm not allowed to go with her in current climes, but I'll race from the studio