pulmonary embolism
"I was 23 when I developed my first DVT and was instantly put on Xarelto.  Being low risk, I was told to go on with normal activity.  Xarelto left me feeling exhausted after minimal activity.  Two days later, my DVT moved through my heart, into my lungs causing a PE.  I was put on Heparin while in the hospital.  Left the hospital a few days later and resumed Xarelto with the continued awful side effects.  I continued to experience chest pain, shortness of breath, and extreme exhaustion.  My doctor thought I was having a reaction to the medicine so they switched me to Eliquis.  Since then, I have had zero side effects.  I have my life back for once.  Love that you don't need to have your INR checked, and foods don't counteract the drug."