Why does this happen? (Weed Trip report)

[Possibilites]

I've done it 3 times. First time was amazing, all the good effects hit me I was having a blast. I was a bit freaked out because I didnt know what to expect. The next two times i've done weed i've had the worst trips. I have this constant feeling of throwing up (something is in my throat) and I dont really enjoy it like the first time. Also does anyone else get that effect where everywhere is blurred except the person or object you directly look at? How do I stop from having bad weed trips? First time was amazing other two times were both bad trips.

 

[Liquid Sunshine]

You sound sensitive! Perhaps just smoke less?

 

[Soowoo]

Smoke less. For your throat, I'm guessing you maybe inhaled some ash. When that happens its hard to get the feeling of it out of your throat and it can be uncomfortable. But just smoke less, find the amount you need. If you're too high just remember that it's the most mellow drug in existence and you'll be sober in a couple hours.