Asking for a friend who suffers from severe muscle rigidity/tightness, physical anxiety and episodes of weakness

Hey all, I'm asking for a friend, she's been off klonopin for a year now, she cold turkeyed it for 3 weeks then reinstated it and tapered off of it. She suffers from severe muscle rigidity/tightness and sometimes severe physical anxiety followed by episodes of weakness. What can she do? She's been on many drugs including the Antibiotic cipro which causes nerve damage. She's now drug free for over a year but still suffers from these symptoms. She is on the GARD diet which is the glutamate and aspartate restriction diet which helped her symptoms go away but anytime she eats something out of the diet the symptoms come back with a vengeance.

What could she do?

Thank you

Asking for Hveragerthi his advice as well as I know he's very knowledgeable.