Currently suffering with thoughts that my wife will get ill soon and die, this is all emerged after my grandma passed 2 weeks ago pretty surprisingly(main trigger I believe).. wife had an episode of IBS and she is doing fine now after taking a week of meds, but while she was in the middle of that I gave in to my anxiety and started googling symptoms and now I'm stuck with these damned thoughts that she might have cancer, stroke, heart attack soon and die.. I nitpick every sensation she is having and whenever she burps or touches her belly.. what makes it even worse is when she had her blood wok results out showing a slight D vitamin insufficiancy and high CRP (wife has a recurrent genital yeast infection ) , my head refuses that this is the cause and rather is stuck with the thought that this is cancer 😔
I had my fair share of Pure O (OCD) and GAD in the past and had similar episodes with My parents as well.. 
I can't get this out of my mind and my thoughts are relentlessly trying to convince me that this some kind of intuition of sixt sense.