Hi. I'm a 25-year-old girl and I was wondering if you could help me. From time to time my left side around my heart used to hurt but it was only for a few minutes usually, max. 30'. Today it's been hurting all day. It gets worse when I breathe or laugh. The pain only hurts 'under' my heart and it's sharp, like something is squeezing that area. I just finished a round of antibiotics for kidney infection and I have very weird hours since I am currently working shifts. Thank you in advance for any help you can provide.