Hello recently i have noticed a popping vein on top of my right eye. sometime it is painful. my right eye is twitching for months now. anything seriou?

See eye doctor: If your right eye is painful & twitching, you need to consult an eye doctor since it may suggest the presence of a condition which may lead to blindness if gone untreated. In many cases, dry eye may be a cause but not that common at your age.

Ophthalmologist : visit would be suitable in your case, you haven't mentioned where the popping vein is: in the lid or in the globe itself? An ophthalmologist visit is warranted, best wishes