I had a surgery six weeks ago, removing two teratoma. They've told me I won't be needing cytostatica/chemo and my bloodresults were back to normal again three weeks ago. But this night my body has started aching as if I'll wake up with fever and a cold tomorrow. But I'm worried it's something more serious... Is it common to become sick six weeks after surgery? Or should I be worried it has something to do with the teratoma?