I’m scared I had a premonition of my mom death?

First of all, the chance that it comes true is very low.

But I think you should discuss it with your mother. Maybe between the two of you, you'll discover that it was really something else that you're anxious about. Or maybe she's due for a checkup, anyway. No matter what, it should make you feel better.

Also, what you call premonition might just be unconcious perception, aka intuition. A slight odor, a change in energy levels, who knows what. Something just doesn't seem right, we just don't know what, but it actually turns out to be significant.

No I won't do a thing.

No premonitions are true.

You should get professional help.

there are no such things as premonitions, so you can forget that.

I would not worry about it, unless you have had at least 10 premonitions in the past that have all come true