I am 31, and I too am having these weird pains, mine are on the right side under my armpit/ side of my breast area, 3 mornings ago, after doing nothing strenuous the day before, I got out of bed and as soon as I was standing upright I had this (nails on a chalkboard) kind of pain in my armpit, as I gasped for air I instinctively grabbed the area and began rubbing the area, but couldn't locate the pain??? after a few minutes of confusion, (did I really just feel that pain) I proceed to the bathroom, after the first couple of steps that intense pain hit again, and again I instinctively grabbed for the area, after a few minutes of poking and rubbing to locate the area..(while my hubby stared at me wondering what type of crazy boob rubbing fit I was having) I still couldn't locate the area causing the pain, I have had swollen lymph noid in my neck when I was younger, and upon searching the neck there was NO question wear the pain was coming from, it was easily felt and found with fingers. BUT this armpit pain feels like someone pushing on a really bad burise, that I can't seem to find, upon further inspection there is no discoloring, no pain location when touched, pain is sporadic, BRA doesn't bother area, but from time to time my arm brushing the area will send me in cringing pain, and weird.. to top it off if I am still or in a resting position for a long period of time, such as sleeping (no PAIN) until I get up?!?! I don't really have a stressful life, some would say my life is stressful, but I don't think I am STRESSED...this is day three of the pain yesterday and today is more of the same....the worst pain is that initial movement from a resting position.....ANY info you can give to help will be GREATLY appreciated....thank you