Wes is 35 years old and presents with back pain. Specifically, he is concerned with pain in his right buttock which then radiates down the back of his leg into his foot. He states that it is worse on standing and if his lies on his right side. He has purchased Co-codamol from the chemist which is ineffective. It has been ongoing for 4 weeks.
Which one of the following would not be a red flag sign?