Very sudden loss of appetite?

I have just now had a drastically sudden loss of my appetite.
I never feel hungry and when i dont guzzle anything, my mom asks me if im taking diet pills or if i have and consumption disorder. which i dont.
also, after i do eat, i discern naseous for about 1-2 hours after.
this have been taking place for the past two to four days
what's going on?
Answers:

Help?!?girls singular Qabout periods?

Is that the solely symptom? I've had this start to me quite a few times during multiple illnesses, both viral and bacterial. If you've had coughing and loss of appetite it may be pneumonia, which is a bit difficult to diagnose. Or you may only just be getting a bad flu. If you own other symptoms, check www.webmd.com. They have a "symptom checker" here and you can get an thought of what you're up against (but don't go self diagnosing!) If it keep up for more that a couple of days, definitely see a doctor!

Girls kissing?

Do you get the impression sick any other way? Could be mono

Bleeding black blood after 15 days of the ministration, anyone can comfort ?

If you are worried about something, that can arise

Why do ladies quit giving oral after a long term relationship starts?

Maybe it's a result of stress or anxiety.

Is it possible to lose five pounds surrounded by a month? how?

tell your mom you don't know why that is stirring and ask her to see you doctor right away