Upper back pain waking me up at night.chest spasms in the morning then im fine the rest of the day.no other symptoms.47 year old going through peri menopause.is this a sign of cancer or could it be something else?been going on 3 months now?

If possible, try a different mattress, a firm one is preferred. Perimenopause is less likely the culprit. Take care.

The duration and intensity of the pain (waking you at night) is of concern and seeking medical attention is strongly recommended as it is likely that it will need to be worked up with imaging and treated properly based on results. Best to start with your primary care doc, an urgent care recommended next, if not having a primary care doc.