I have noticed three small lumps, hard ones at that on my chest one under nipple not behind it but under at the bottom of chest and 2 others on the sides of my chest. They are painful but I dont think its gyno due to there are multiple small ones but they hurt like a mother. Could they be a deposit of some sort.....like calcium deposit? I had a killer chest workout Saturday so I thought that the soreness in chest was from it. Noticed lumps yesterday and started letro just in case. Please help