Was using heroin at the time, and I had two syringes with a clear solution in both. One was water, the other was MDMA dissolved in water.
Well I grabbed the wrong one to use for my heroin, so I ended up injecting the MDMA with my heroin. The rush was so crazy the MDMA hit first causing my pupils to blow up. Seconds after the heroin hits and my pupils become pinpoints.
It was just wave after wave of dopamine and serotonin fueled bliss.
People assume MDMA (Ecstasy) will keep you up all night. That's not entirely true. If you do pure MDMA in a non party environment you can get so relaxed and calm you could sleep if you wanted too. Take that same drug in a party environment though and you're going til the sun is up. It's all about setting.
Pure MDMA in a non party environment will be speedy for the first hour or so, but after that it's just bliss. Lots of times people aren't getting real MDMA, which is why they get super speedy. It's usually MDA, methylone, ethylone, Mephedrone, etc. as these are cheaper and easier to obtain.