Hello everyone! Has anyone heard the above expression? I suppose it means something like to be sick with worry or 'bouncing off the wall with worry" or something like that…? Found it in the programme Iaith ar Daith 
That’s what it sounds like to me. Off the wall with worry.
Yes, they like to use some street Welsh for fun. Was it Alex Jones? If so, I agree with: She is pinging off the wall with worry.