Physiotherapists said my one sided low back pain and sciatica type symptoms are not ticking any boxes on what it can be,can stress cause these symptom?

Ticking boxes: Symptoms of radiculopathy cause one-sided back pain and sciatic nerve area symptoms. The symptoms may be numbness, pain or weakness. There may be reduced reflexes, especially in the Achilles tendon, if there is an S1 radiculopathy, an injury which often causes symptoms through the sciatic nerve. Testing sometimes helps, such as an EMG test. Physiotherapy is also a good idea - safe, and cheap