Alel,
Thank you for posting here with us, we're glad to have you here.
Fellow community member who suffers with health anxiety here, and I can tell you that a lot of what you're asking may be good questions for your GP. They may be able to ease your mind a little and talk you through your anxiety, helping to get to the root of what's the most distressing for you.
I wouldn't recommend reading through the news too much if it'll cause you distress - in my experience, it doesn't help much. Ignorance is sometimes bliss, particularly with negative news stories and articles that are designed to cause distress and fear. Don't get me wrong, some articles can be good and contain accurate and up-to-date info, but a lot of current news can be really, really negative, and that's not necessarily good for your wellbeing long-term.
Do you have any other friends or loved ones who you would feel comfortable talking to about this? Sometimes it can help to have somebody that shares your opinion and also has insight into your life and experiences. Social support is great for wellbeing and reassurance.
I hope this helps, but please continue chatting with us if you'd like, we're here to support you.
SB
