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?

take one painkiller and one antacid