Welcome to Connect, @wyveda.
You may notice that I moved your message to this discussion where several members are talking about myocardial bridging (MB), and I'd like to connect you with them. Simply click VIEW & REPLY in your email notification to find your post.
I’d also like to invite @ch665296f, who has written about myocardial bridging in this discussion, https://connect.mayoclinic.org/discussion/v-tachycardia-apical-hyp-card-myocardial-bridging/
This article, published in the Journal of American College Cardiology, has detailed explanation of MB; I’ve summarized some key points, below:
– Myocardial bridging occurs when a segment of one of the heart's main arteries tunnels into the heart muscle and back out again, instead of resting on the surface of the heart. The bridge refers to the band of heart muscle (myocardium) that stretches over that section of the artery.
– Most people with this condition, which is generally present from birth, don't have any symptoms.
– But the part of the blood vessel that dips into the heart muscle may be squeezed when the heart contracts, especially if the heart muscle is thickened. This can cause symptoms similar to those of a heart attack – chest pain, tightness or pressure in the chest, pain in the left arm or jaw, or shortness of breath.
– MB is usually managed with medications such as beta blockers and calcium-channel blockers.
Have you noticed any triggers for the stinging/pain? For instance, when you exercise or do a physical activity? May I ask how the MB was diagnosed?