I am a worrywart by nature. My husband knows it, and I'm glad I married him, because he never worries about ANYTHING, so he balances me out. Part of my worries stem from trust issues. I don't trust anyone, so I always think something is going to go wrong. Could you be having a deeper issue that's manifesting itself with your worries? Or maybe you had a childhood experience where someone close to you died or left you? Sorry to sound like a psychologist (although it is my trade)...but there are some things to think about. If I ever worry about "what ifs" I try to go do something that moment to distract myself. Whether it's doing some dishes, running an errand, or flipping on the tv. Sometimes it helps to just say your fear out loud, and you might realize how silly it is to worry about it now. It's all easier said than done, but in reality, whatever happens happens, and there's no reason to worry about it until it DOES happen. If you do think your worrying is excessive, and it takes up most of your day, I would suggest finding another doctor that would pay more attention to you. Anxiety is a real thing, and it can be controlled through behavior, medication, or both. Good luck :)