Hello! I ve been having a heavy feeling on the left chest area. It feels a little heavier, with a little pin pricking sensation, when I inhale heavily. I m 45 yr old femaie, and 30 lbs overweight . Had a surprise baby 9 months ago, with no difficulties. Took a round of Prilosec for heartburn a few weeks ago. This heavy, tight feeling has been going on for about 3 days.