I've been having this pain in the ribs on the lower side of my chest for the past couple of days, plus my neck and shoulders are aching. There's no trouble when I breathe, and I'm not overweight. I make sure to exercise and walk every day. What do you think might be going on?

Possible Causes: a. Muscle strain from exercise or poor posture. b. Costochondritis or inflammation of rib cartilage. c. Referred pain from neck or shoulder issues.

Recommendations: a. Rest and avoid activities that worsen the pain. b. Apply ice or heat to the affected area. c. Consider over-the-counter pain relief like ibuprofen.

When to Seek Medical Attention: a. If pain persists beyond a week. b. If symptoms worsen or new symptoms develop.