Is it normal that i feel like something bad will happen to me soon?

I have had the same as well, and they were usually right. Ensure that you're taking proper safety precautions in everything you do, ask yourself if there are affairs of business that need to be resolved in your life as you may be feeling late anxiety over them and don't focus too much on those negative feelings, as they could lead to a self fulfilling prophecy type situation.

If there are issues in your life that cause anxiety, try to respond to them in a constructive manner. This may be the time to reevaluate your business to ensure that you'll be safe.

Feelings mean very little. You can fear a forest or fear a meadow; you can love murderers or those who save lives. To let yourself be swayed by something so ambiguous and relative as feelings is folly.

That's not to say you shouldn't give weight to what you feel but anyone who allows their actions to be informed by emotion alone is no different than the animal.

You feel anxious and fearful yet there is nothing to reasonably justify these feelings. Thats no way to live. If it persists - and it seems it has - see a counsellor - I'd suggest one trained in cognitive therapy

If you keep feeling these negative thoughts then your actions (possibly subconscious) will follow, and then something bad will happen to you!
Try to see good things in life and act on those things instead.
And stay away from knives and guns. I have no idea why I said that.

It is anxiety, it's a condition, you need to learn that it's only that and you will get over it. Focus on something else, get obsessed with something you live that makes you happy. Not eating healthy can make you feel ugly, I suggest exercise and fruit smoothies, the healthy ones.

I felt like that one time. That same night my brother attempted suicide and i was woken up by police and screaming.

I've had that before. I once convinced myself my mother and brother were going to die - I was so absorbed by my own horrible imagination that when my mother called me I was certain it was someone calling to inform me that they she and my brother had been killed in a car accident or something. Of course it wasn't, my mum and bro were perfectly fine and still are.

I think it is just your anxiety and stress playing tricks on you. Sometimes it takes a couple of negative thoughts to get the ball rolling and pretty soon you find yourself absorbed in this despairing mindset that does no good. In fact I'd say feeling that way is more likely to lead to something bad happening - a self fulfilling prophecy.

I hope you overcome your feelings of negativity because I guarantee you for the most part it's simply you being your own worst enemy :) Try and focus on the positives, put yourself in uplifting situations and extricate yourself from negative ones.