I am too experiencing a similar type of pain in orbit but not related to blinking of eyes.
I too showed many ophthamals but they could not diagnose anything.
they refered me to neurologist but the sensory organs were ok.No clinical problems were detected.
I actually had a Lasik done in 2004.It was okay till now. but this pain happened after adding Antioxidants in my eye
which probably created pressure in my eye.the eye couldnt sustain it. Hence it dropped down in the orbit.
Now this has become a very depressing thing.Its being going around from 3 months.
When i sleep in the night i feel a lot of heaviness in the orbit and some kind of muscle pinching.
this pinching causes a lot of pain while travelling and while working on computers.
Couldnt find out any possible solutions ?? but this is reaaly hampering my confidence and concentration level.
It feels like someone has stretched my veins and they doesnt seem to subside.this veins are being seen from outer portion of eye.
Also i feel like the orbital curve tend to stretch but they collide with something in their path and an obstruction is created which causes further pain.I also find pain in orbit while speaking,eating.
It feels like there is some kind of blockage that the nerves are not able to free themselves.
I also feel similar pain on eye movements.
conclusion: My dearest suggestion to all guys out there would be to not to go for any kind of Lasik surgeries,
since it might improve your vision but it will destroy your life due to complications.
This discussion is related to Chronic pain around left eye when i blink heaviness around left eye