I wanted to try the salt water flush but instead of putting 2 tea spoon of salt i accidentally put 2 table spoon full of salt will i be ok? it's my 1st time trying. i also did it on empty stomach 1st thing in morning and also made me vomit some out?

Creating your own nasal saline wash can be difficult. If it is excessively strong ( as it would be here)} or week, it can cause transient nasal congestion. It will pass over time. There are over the counter nasal washes that are inexpensive and avoid this problem.

There are no known benefit from flushing with saline. And some potential harm. Why are your doing it? Discuss with your Dr. Some will even get a increase in BP if you are salt sensitive. Beware.