Am I going through tms pain. My condition is as follows:- After 5-10 Mon continuous glaring at screen eye pressure develops behind my head and I start too much yawning.If I continue staring at screen my back of the head becomes very stiff and a time comes when I am not able to focus on screen.Also if I do too much screening more than 10 mins I can't sleep and it is difficult to read text. Due to eye pressure sometimes it is difficult to close eyes and give rest to it.I have to lay on the bed for more than 10 hours to reduce the eye pressure I only start yawning after I see screen.When I see the screen for 5 mins and after that my eyes easily get very tired and I feel that my temporal muscles are very stretched and strained.If I stare at screen for more than 15-20 mins a time comes when my temporal muscles ,muscles just above my forehead, muscles just above my neckget very tired and stretched and I am not able to focus on anything(like reading a book) an I feel like I can't think anymore Now to get relieved from this state I have to rest on bed, and do continuous forced yawning till the muscles around around my eyes and muscles which I mentioned earlier get relaxed only then I could sleep and do other activities.My yawning is not natural and I can feel heat (hot air) coming from my mouth whenever I stare at screen to get back to normal.I can easily read books for 8-9 hours but whenever I see any screen beit of computer,TV or mobile phone I can't tolerate.In my case on looking at screen for long time my eyes not that much but my muscles which I mentioned get very hard and stiff and to sleep in night or read something like for 1 hour I can read only 1 page of book.Also I have seen that when I go outside for walk and when I do forced yawn my vision gets improved(I am myopic) and there is some stiffness over my forehead muscles which get relaxed and I can easily focus on anything .When I increase my time of screening for very long like 1 hour then my muscles get stiff ,I have to do forced yawn ,go outside and try to sleep and for 3-4 days I can't sleep ,my body doesn't get rest(very less) due to which I have very low energy level , such that even if I try to shout the person sitting next to me could only hear or sometiimes not. 2 years ago I didn't had the problem of seeing any screen but at that time something suddenly occured( or my body changed) that I lost my sleep.How hard I tried to sleep but I was unable to.It was like in 1 week I can only sleep for 1 day ( that also rarely happened).For me everyday was a struggle cause my body got very tired easily.This happened with me for 1 year but the day I started studying in led lights (9W LED but LED over 9W also pained)and not in tube light my eye muscles didn't get tired or hard and stiff.But just after one year I found that whenever I saw screen my sleep at night becomes worse and sometimes I wasn't able to sleep when I used my mobile phone but that time I could stare at it for 1 hour or more. Due to study pressure I limited my phone use to 10-20 mins and gradually I found my situation getting even worser and now it is difficult for me to look at any screen.(but can manage in dim light for 10-15mins. My age is 16, I really need help coz I want to pursue engineering and I live in a country where good job opportunities are only given to only engineering or medical students.For me this year and next year are crucial years which will decide my future and if I am not able to find cure I wouldn't be able to do anything rest of my life.Also most of good jobs require working with computers. Please help me out!!!!!!!