I often feel a mental confusion and lethargy after using the internet. Is there some kind of diagnosis?

My head will start to throb, I'll get irrationally emotional/upset and snappish/angry. Concentration is distorted, I often start to engage in repetitive behaviors for reasons I don't understand. After I feel slow, have trouble thinking, and often ruminate on going back to the internet. Masturbation seems to often been in conjunction with use and the lingering aftereffects. Feels like I'm in a totally different frame of mind

any ideas? It sounds like addiction, but I've never heard of someone being so mentally distraught after like this