Diagnosed With Hypertension, On Norvasc. Pain Between 3rd And 4th Intercostal Space, Palpating. Any Ideas ?

Hello. I am 31 y/o female. I am a paramedic who s been diagnosed with hypertension for 2 years, controlled with 5mg Norvasc . I also had hemolytic anemia at age 2 that was treated with a blood transfusion and several months of prednisone . No complications ever again. I have one child, one pregnancy, preterm labor at 34 weeks due to preeclampsia , natural birth. I am active, energetic, eat well. For the last 3 days I ve noticed some pain btwn my third & fourth intercostal space, mid-axillary on the right side. The pain is reproducible upon palpating and feels like it is bruised, and have not injured myself (not that I m aware of anyway). Also when I raise my right arm, I feel a mild burning/tearing sensation. I attributed it to a muscle strain or something to that effect, due to the nature of my profession. However, as I was just changing for bed this evening, I noticed that I have a palpable abnormality that originates from the site of the pain down to just above my right hip area. It felt like a prominent vein , so I looked in the mirror and noticed that it almost looked like the shape of a vericose vein, but there is no discoloration. I am slightly concerned because I feel that there is a risk of emboli. Any ideas?