Hello..I am a 46 yr old active female. I am a runner. I had extensive foot surgery in 12/2013 and just now starting to run more in the past 5 months. I have been experiencing a sharp pain in the left breast area. It occurs at anytime and more when I am upset. I also have noticed that I am not inhaling enough oxygen as when I run. I get winded more and am running only 2-5 miles at any time. Should I be concerned?
Anytime one is going way up on ones exercise, it would be good to get a check-up. There are age related decreases in exercise. They are smaller than deconditioning which really lowers how much exercise one can do but can be built back up in under a season. Key point is muscle fatigue is from more acid building up in muscles than what can be taken away