I'm having this ongoing pain around my breast and underarm, mostly on the right side, and it's been happening for about 4 months now. It initially started with pain on the right side of my chest, and sometimes I even get nipple pain. There aren't any lumps or swelling, no redness, fever, or changes in shape. I had an X-ray and that came back normal. I also have sinus problems and my Vitamin D3 level is at 21. I'm not experiencing any breathing issues. Could you please help me figure out what's going on?