Please help- Strange eye problem (medical advice needed)

So I have this thing going on where I have a hard time controlling my right eye. I used to be prescribed adderall and think there might be some kind of link. I used to drink a lot as well and still do, but not more than some people I know and they don't have this problem. Anyway, so like I was saying, my right eye seems to be sensitive to bright lights for one thing. The other thing is that that, lets say if I'm about to or trying to do the motion of turning my head rapidly to the right, or left, or any direction for that matter, the right eye doesn't seem to want to follow through smoothly to the new thing I'm looking at and it causes pain eye. Here's another example, it's weird.. If i'm watching say a movie and the camera rotates or pans to the left or right quickly to look at another character or something, it's like my eye won't or doesn't want to move along with the movement like it naturally used too. It seems to be only my right eye and it causes pain, which seems to be physically manifesting, as it happens continually, the inner corner of the eye seems to get red and swollen to the point where there is some puss or white liquid coming out a bit, which i heard is a sign for trauma (trauma of the eye)I have a good amount of anxiety as well and have been sometimes very anxious especially in social type situations which makes it worse. Too much caffeine seems to make it worse also. Could it be toxins stuck in my body from meds, alcohol, stress or anything else!? I was thinking that it may be a sign of a worn out thyroid gland??? Please help, this is making my life much more uncomfortable and unhappy than it used to be, it's hurting the way I life my life and function.

Thank you!