How to quickly gain weight?

yeah, I need gain weight, for some ten years around, I got nothing more weight,however meal you eat. it doesnt work on me . I like no drugs ~~pls

Do not take drugs stop if you are, I don't know if you are or not. Thats illegal and bad. You could go to jail. You could die or become sick from it. Eat some junk food and eat healthy food too. Do not exercise a lot. Wear bigger jumpers and bulky but fashionable colthes to make you look bigger. Drink plenty of water. Go in the sun for a bit. Have fun and just hang out with your friends. YOLO, don't worry about it too much. See a doctor if your too skinny.

I also want to gain weitht and I know I have something wrong with my gastrointestinal system.It's not very serious,just less healthy. So I am thinking if you have the same problum? It's a guess ,just.(I don't know if i've expressed my meanings.)