Hi, I have been sitting here trying to figure the site out enough to reach out when I saw your message. I had surgery on Monday, July 22. I have had extreme pain below my left breast bone with any deep breath. I don't feel a lump. But can touch the exact place that hurts and pressure is unbearable. Tonight I am so fatigued I am struggling. I feel a strain in my left chest area with deep breaths tonight in addition. I think our issue sounds similar with the location of the pain and all. I am interested to see what others say and I hope you get answers tomorrow and feel better!