I became severely anemic after a few months and the e/r did an MRI, looking for internal bleeding. They found the tumor then.

My GP had x-rayed me, looking for a cardiac anomaly - he suspected an aortic aneurism. What he should've done is order some soft tissue radiology instead. Having your GP consider a CT or MRI is my advice.

Hope in your case it's all for naught. Best to check though.