Me, waking up at 3 am to start working in my computer facility. Dark glasses reduce stress on my eyes. Last night I went to bed at 9 pm, with zelenka's music and automatic shutdown on PC. Today I am seeking for a magnetic resonance in my lumbar region. I harmed it chronically due to programming and awoke the situation due to heavy dancing a month ago. I am on medication.

PS: I am 60, almost, programming is vital in my job as innovative educator. Probably you'll be such in some years, or months.
PS 2: I am well paid and do not pay rent anymore, since 2012.

Ouch! Ergonomics seem to really be vital for you. And I'd imagine that they only gets more important with age.

Although the dancing is the thing that triggered it so how do you know that it's caused by bad ergonomics?

For starters we can use the 20-20-20 rule for our precious eyes.
The rule says that for every 20 minutes spent looking at a screen, a person should look at something 20 feet away for 20 seconds