hi sir , i m facing problem with my eyes.dryness.in corners of eyes feel tickle .and then i rub and after rub fully redness in my eyes .i feeling very heaviness in my eyes and head.in night i cant sleep. when i trying to sleep i feel very heaviness in my eyes . just i close my eyes i cant understand how i m sleep. and then i m feel stress.till half night i m not sleep.when i m doing work on computer it is very hard for me .i cant drive well. mostly i use sun glasses but without sunglasses i cant drive .while drive tears in my eyes . in the center of my head i feel pulsating pain. i was consult with my dr. he suggest me vel drop gel and biflace eye drop .plz tell me what i m do . to take it i m in stress