The 55-year-old star and Britain’s Got Talent 2009 finalist shouted out ‘Help me!’ in Derry Airport before being comforted by staff who led her into a sideroom.
An onlooker explained: “There was quite a buzz in the airport when people became aware of her presence.
“To see her running through the airport after she left to board the flight, screaming for help, was the last thing anyone expected to see.”
A source close to Susan has confirmed that the incident did take place but reassured the singer’s fans that she is doing much better now.
The pal told The Sunday People: “Susan’s trip wasn’t what she had hoped it would be. She had travelled to Derry for a birthday celebration and had taken her brother with her but sadly the two of them had a disagreement.
“He decided to leave early on his own which was a problem for Susan, who is not used to travelling alone and felt very vulnerable and upset.
“She became quite distressed and in the end her assistant flew out from Glasgow to collect her and brought her home safely the next day.