I am 24 years old and working at the office. Yes, I used the computer in the office, and I think this can because of this environment. But what about weakness. I thought something is wrong with me.
You know you have anxiety or depression because you're chronically anxious and chronically depressed. If you're not, you're not suffering from that. That being said, who knows? These are a lot of very different symptoms. If this weren't an anxiety forum I'd say it sounds like allergies or a virus. As for the pain, how old are you? Got any joint issues? How's your posture? Use a computer or cell phone a lot -- they cause this because of craning of the neck. If you do have depression or anxiety, do you often focus on stuff that goes away by itself? Have you been out in the sun a lot -- been a very hot and humid summer. Think of what might be causing it, and if you have continuing problems, consult your doctor.