I am currently researching for my boyfriend, he is going through the same thing as you. It’s been years now, and still blood, and huge painful clots. He thinks they are worse when he does physical activity. You two really need to talk and try to help each other figure things out if possible. One of his doctors suggested that hydobaric oxygen. The other doctor told him that he thinks it causes the cancer to spread, because it happened to one of his patients. It could have just been coincidentally. We are confused and scared, but something needs to be done.