I have a tickle in my throat that makes my eyes twitch and water it gets so bad?

Allergy. Sounds like allergies. Try otc allergy medicines to see if it helps. If you develop a fever or symptoms get worse then do go see your doctor.
There's hope! The short anatomical answer is that your ocular/oral nerves are connected and you're experiencing a related symptom. This is benign and natural in some folks.
Difficult to say. Not sure exactly what the question is, but if this is a persistent problem, a sore throat (and other cold-like symptoms can be associated with viral conjunctivitis. This can give you tearing, redness, blurry vision, mucous discharge, and light sensitivity. It usually lasts a few days to a few weeks and can affect one eye or both eyes.