I am a 58 y/o woman, overweight, sedentary lifestyle.  I'm recovering from the flu with bronchitis.  Two years ago, same condition, and post-flu developed sharp pain in the left side below rib, and around to back.  More prevalent when sitting at work, negligible when lying down.
Hello,Pain is a sensory modality if you can tolerate it you should not worry about it if not then take analgesics which relieve the pain.Hope I have answered your query. Let me know if I can assist you further.Regards, Dr. Bhadresh Lakhani