Hello Again:
If you look at your original post, you didn't say that the burning sensation starts under your left breast and seems to go to the back behind it. You said "lately I have had this burning, and tightening sensation on the left side of my chest, right behind my breast".
The description you give for the tingling in your arm is also a little different than it is in your original post. The way that you've stated it in this post leads me to strongly suggest carpal tunnel syndrome.
As for the burning sensation that begins under your breast and seems to go around to the back behind it, is still suggestive of arthritis. The area that you are describing is your rib cage. Arthritis can occur in this region as it can in any other region. It occurs when calcium deposits are made on the bone. And, trust me it burns. More so when you are fatigued.
While this could also indicate something else, it isn't something that one could diagnos on line. This would have to be seen by your physician.
In addition to your original post, referencing the bruising. I mentioned to you that bruising is an indicator of diabetes, it is also an indicator of Luekemia.
For these and the other concerns that you shared in your original post, I highly recommended that you see your physician. Istill believe this is in your best interest.
Finally, no...I don't think that the burning sensation is related to the tingling that you experience in your elbow and fingers.
I am not a medical doctor; however, I am a doctor. My field is clinical psychology. We go through an extensive educational process regarding the brain and human anatomy and the functions and interactions, therein. We have to because our clients often times take serious medications and we have to know the interactions of these with the brain and body.
I am also a licensed Esthetologist. More anatomy; however, our clinic stays busy with clients that are seeking out the fountain of youth through Botox, laser and chemical peels. I also diagnos and treat every skin disease you can think of.
I am only adding this information to assure you that the experts at Just Answer are sound. If we aren't knowledged in a domain we aren't allowed to respond to the questions in that category. Trust me, I know nothing about cars! Hope this puts you at ease.
If this is acceptable, please do accept. Thank You
Terri L. Romaker