Please choose the correct ending to complete the given sentence: Health: [header] How to treat upper back pain [title] Change or take a break from your normal routine. [step] Upper back pain is often caused by repetitive motions at work or minor injuries related to playing sports or vigorous exercise. As a first measure, take a break from the activity that may have resulted in the strain and rest for a few days.

Ending1: [substeps] Talk to your physician or physical therapist if you have any other health issues or concerns regarding upper back pain. You may want to consult your doctor if other health conditions can affect your upper back pain. Ending2: If your problem is work related, talk to your boss about switching to a different activity or improving the ergonomics of your work station. If the pain is exercise related, you may be working out too aggressively or with bad form. Ending3: [substeps] If you're not currently participating in sports practices or activities, during this time, do not exercise. Many people with upper back pain respond better to exercising because the' leg strain' has been alleviated. Ending4: Restrict yourself to activities that you are unwilling to do and that engage the inactive muscles that are associated with higher back pain. [substeps] When you visit with your doctor or physical therapist, ask them to refer you to a physical therapist.

Answer format: ending1/ending2/ending3/ending4