Do I have appendicitis ?

I got woken up this morning by bad pains in my stomach, lower right side, it was really bad, when i tried to get up i had to use my bed to pull my self up, i got ready for school, and when i put on my tights i couldnt lift my right leg because of the pain, i thought it would go away and went to school, through out the day the pain was still there, and then when it cam to the last lesson of the day where i started doing more movement the pain then started to increase, when i got home i went to the shops with my little sister, i was finding it hard to walk and was in alot of pain, when i got home, my mum googled up what it could be, and the main things that kept coming up was appendicitis.. its now half 10 at night and i still have the pain, i dont know what to do.. and im scared of what it could be.. help please? anyone!