Has anyone else had this feeling in their chest?

solar plexus?

It's around here. The area that's marked is pretty much the only area where I feel this sensation.

Welcome nothing1234567!!

Awakening one's prostate gland opens up many levels of orgasmic energies, including into areas that can seem outside the expected range of sexual orgasm sensations. The area you indicate in the diagram (and thank you for being so precise!) is the sternum where a lot of muscles and nerves are structurally connected. It can be the focus for many sensations associated with both heart and gastrointestinal system issues.

From the pleasure experiences point of view, it is also a focal point at times for p-waves, one of the foundational general energies we can experience as very different orgasmic energies sensations and effects.
There are many other complementary practices that focus on these energies, and a number of us here use Key Sound Multiple Orgasms (KSMO) http://www.multiples.com/orgasmforum at add to our Male Multiple Orgasms (dry) (MMO) abilities and Aneros practice. Orgasmic pleasure energies centred where you indicate are often at KSMO associated with Heartgasms: a loving energies "exhale" outward to a friend.

The Taoist spectrum of these energies we may awaken here include Jing(semen-focused, life essence, sexual)>>>Qi/Chi(life-force, martial arts, vitality orgasmic)>>>Shen(spiritual orgasms, Calm Seas Still Body Super-Os floating bliss, through-the-body travel, universal union, encountering the pressence, and beyond...)

So, nothing1234567, there are more than seven possibilities beyond "nothing" for your contemplation and delectation as you let your body/mind whisper to you about just what this early stage focused joy may be hinting to you!!!

all the most innocent and joyful patient openings to this astounding range of ecstatic orgasmic energies all

as we rewire
we are all reconnected

I am now in a great chat at KSMO where we are discussing several members experiences with the same/similar phenomenon nothing1234567!! Try this link: http://www.multiples.com/orgasmforum/taigachat/ 11:59 PM Saturday November 10/12

Art

Artform and anyone else interested! Here's a great video clip I found that reiterates some of our convo on the KSMO site tonight. http://www.eroticmassage.com/video_library/clip/302?destination=free_resources%2Fnew_school_video%3Fpage%3D1

Great Neuro!! Thanks!! That is a very good explanation of the nerve systems firing and the steps up in certain timeframes indeed. There are further complementary systems also at work here as well. HHHmmmmmmmmmm~~~~~

@artform thankyou so much for that response! Really interesting stuff. I like the term 'heartgasm'!!