Do you have Costochondritis? From what you are describing, that is what is coming to mind to me.. Now, mind you, I don't have Costochondritis, nor does my spleen hurt, so I may be WAY WAY off, but that was my first thought when I read your post... You can read about it here, and see if this fits what you are experiencing... Hang in there, and if it gets any worse, go to the ER, better to err on the side of caution... Keep us posted!
Confirmed Diagnosis of - Psoriatic Arthritis/Spondylitis/Graves Disease/GERD/Scoliosis/Hiatal Hernia/Graves Disease of the Eyes/Chronic UTIs
Current Meds - Enbrel/Prevacid/Synthroid/Nitrofurantoin
Past Meds - Inderal/PTU/Prednisone/Voltaren/Feldene/Mobic/Cortisone and Steroid Shots
Additional Supplements - Multi-Vitamin/Bromelian/Acidophilus/Green Tea