U r suffering from Anxiety disorder. Stomach upset is also an effect of it.Accept the reality.
Always keep in mind that everything in this world is not in our hand.There is always a chance to miss a thing when we try to catch another.
Dont give up hope,keep ur self confidence high.
If problems persists Consult a good psychologist.
Health Tips
for overall health
1.sleep 8 hrs at night.
2.avoid too much social media.
3.avoid too much use of mobile pc laptop.
4.avoid mobile pc 1hr before sleep.
5.before sleep may hear good music,or read a good book or can watch a good movie.
6.workout daily or regular morning walk or join gym.
7.Share ur thoughts with ur parents or good friends.
8.Concentrate on ur work,study,passion, hobby.
9.Maintain proper diet.
10.Take proper protein supplement and some time multivitamines.