I've recently discovered this site, but have been dealing with hypochondria-like tendencies and worries basically my whole life. My most recent worry is also pancreatic cancer - both because it is so deadly (and terrifying) and because I have always had stomach and digestive problems, but I feel they have been getting worse as of late. I have done no tests (for this specific concern), as I am still in the early stage of fear/over reactive/trying to figure out if I should really be worried (the old repetitive pattern). I feel that it's positive you have had good blood results, and hope that it has helped calm your nerves even a bit. I can also understand the continued fear and gut belief that something is still wrong, and that no one has found it yet. I have yet to come up with a good way of handling such thoughts and stress, but it is a process of getting through it.
It is unlikely that you have it (and as I say this, I fear that for you it is true, but for me it doesn't apply - how unhelpful!) - so if anything I say is helpful, I hope it is that I can understand your unrelenting fear of uncertainty (and now of this specific illness), but also that I feel you are probably fine - it's good that you have taken action, and now that it has turned out alright, it's best to try to move on and find some comfort in the rest of your life. I feel that it's very difficult for us health worriers to live as if we are healthy - even though we usually are, and this leads to much exhaustion and frustration. I wish you well, and more importantly I wish you some relaxation, calmness, and happiness, regardless of insistent fears.