Janet Faal went out with a friend last week as part of her rehabilitation from the anxiety disorder agoraphobia.
But after moving a wooden pallet to help her friend reverse she stepped into the open manhole.
Janet banged her face, broke her nose and suffered a suspected fractured leg.
The grandmother-of-four says she has been set back ‘years’ in her battle with debilitating agoraphobia.
Janet, of Crawley, West Sussex, now reckons she may never leave the safety of her home again.