lung/chest pain worsens while bending over

Yesterday, out of nowhere, my right lung started bothering me. The pain is hard to describe, kind of a dull ache or a burning sensation. It's located on the right side, but high up in my chest and close to the sternum. I feel it when I take deep breaths, lie flat, or bend over. It's not excruciating, but more of an annoyance. I've experienced this before, but it went away on its own after a few days. I'm just wondering what the possible causes could be? I'm not even sure if it's lung related or cardiac? Could it be costochondritis?

ok, im 18, male, quit smoking 3 months ago, am healthy enough to make a half mile run before first three minute break, and eat healthy. minus referring me to the er, or medical services that are outside of the comfort of my home, i simply want to figure out a name or reason to my affliction.

on random occasions over the last 3 or 4 years, my chest has randomly hurt for the duration of a few seconds to a minute. usually occuring when i bend foward fast or sideways, ect. but when i straiten up, it goes away for the most part and then over the next 20 to 30 seconds,'dissipates' minus the actual dispersal, just goes away. In the last 6 months or so it has been more frequent, like every couple weeks itll hit, but in the last 3 times it has happened, it has lingered much longer than it ever has, and the most recent time it started after work, and while i was sitting relaxing on the couch, watching tv, as i went to grab the remote it hit me and almost put me on my knees. and persisted for several hours, but i found as long as i was in a vertical position, i was fine, but if i went to bend over for any reason, or any amount, it would feel like a stabbing/squeezing feeling. when i went to lay down, i got in my usual position of rest, and it continued to hurt even relaxed on my side, i rolled to my back, and it persisted, so i rolled to my front, to which it hurt very bad, and i flung to a sitting position, and started breathing hard like id been stabbed.

the pain it roughly located 2 inches toward the center of my chest(half way to the center) from my nipple, and maybe a half inch below, in a very pinsized spot. it is above my diaphram, and to the right of, partially in front of my heart, its near the surface, but not a pulled muscle.
breathing, coughing, or any strenuous activities besides bending over do not cause the pain, or make it flare in any way. but bending over feels like someone has their finger in my chest with a sharp nail.

i would like to know if there is any medical term for something like this, and any other symptoms it may have. the most else i can say is afterwards, when it stops, my shoulderblade on my right side feels tired or sore, most likely from reacting to the pain and moving myself quickly out of positions, and holding my weight on my arm instead of my knees to try to dull the pain. if there is anymore informationnessecary, please ask, sorry, my grammer, vocabulary, and punctuation are at a loss, im a little too tired to care about it at this particular moment.
once again, i will seek proffessional medical advice/treatment soon, but i would like to have an inkling of an idea of what it might be, or be caused by.