Pulled muscle

So this morning I've woke up and the pain under my left boob is still there constant. I have however remembered that I stupidly tried to pull myself up a pole on Saturday night whilst with friends...my arms are weak so it was more a strained effort than anything else. I'm wondering if I've pulled the muscle or if I've strained it which is casing the pain.

Has anyone else pulled a muscle there?

Xx

[Bramwell]

I know I'm a guy but I used to get cramps and pains across my chest when I worked-out a lot in the gym due to pressure on the muscles.

It sounds very likely indeed it's a strain - but I'm not a doctor and only commenting from my experience.