Anxiety about my parents health

Hi,

It is happening again. I dont think it is just anxiety. Right now what I feel is not just anxiety. I feel the world is sinking and i dont gave anyone but myself to handle and I know i will mess it up. My father is not feeling okay. May be it is just a common cold and having a nasal congestion but since the time os not good now. I dont know what to do? Or what to feel? All kinds of what ifs are filling my mind. I know I might be thinking too much but what if any of those scenarioes running in my mind comes through? How will I manage? I live in a remote location. My parents dont have contacts to any health office people. How will I manage to keep them okay if they face in physical difficulty? What should I do in this type of situation? What if he is not saying but suffering more from inside? What if what my mind says that I can not do anything is true? What if my parents need me and I am too busy with having these thoughts that I go numb and cant help them out? All these thoughts are killing me. Can please somebody talk to me or advise me something?