And the sick feeling is anxiety? Have you seen a doc to make sure its nothing else?
In that case I would advise to get some help with it;counselling.lily
Constantly feeling ill, dizzy and that you "may" feel sick if you go out is definitely not normal. Since this has apparently only come about in the past year, I'd strongly suggest, as did gofio, that you see a doctor as soon as possible. Rule out any organic reasons for how you're feeling first. If you get a clean bill of health, then it's time to ponder what's going on psycologically.
If you let this continue, your fear of feeling sick if you go out could evolve into full blown agoraphobia. It won't just be the pub with your mates, it will be anywhere beyond your front door. Please don't let that happen to you. Seek help.
Peace
Greenlydia
If you are concerned about your mental state see a Doctor/Psych/Friends ~ there's probably nothing much wrong, but better get it checked out before it becomes worse? It's abnormal for someone your age not wanting to 'go out'. Best of Luck, George