There are two possibilities for your symptoms one is herpes infection, which usually starts with some vague pain or burning or abnormal sensation followed by appearance of rash, other possibility could be trigeminal neuralgia. Herpes infection usually subside by itself within a week but if that is there it means your immunity has gone down recently due to some reason.
Next Steps
Wait and observe for few more days, if rash appears and involves the eye lid then you may require treatment with antiviral medications, if a week passes and no rash appears then you consider consulting a neurologist to get evaluated for trigeminal neuralgia.