1. YESS!!!! It feels like someone punched you. It hurt so much for me I just lay on my bed with ice on my stomach hoping I get frostbite, which I do but it dumbs the pain. But it depends, it's different.
2. 30-40 ml, usually.
3. I started mine at 11, but you can get it earlier or later.
3. I use pads, tampons are just...I don't know, they sound uncomfortable to me. I never used them before, no one in my family uses them, maybe that's why.
4. Of course! But depending how thin, ut you get used to it real easily.