Risks with Ecstasy and Phet and Vodka togather?

This weekend I suffered a painful experience, my friends stepdad and his son offered me a drink out of a sports bottle and he usually gives me drinks but I decliened it, but he insisted me taking it. It was blackcurrant with vodka and shortly after I took it they said to me it also had Phet which is speed and ecstasy. I didn't believe him and I went home, I suffered rushing, fidgeting which has caused me to have a really big blister behind my neck and I was really weak and had a scorching temperture. I'm okay now and the side effects have gone but what other fatal risks could I of suffered? I don't do drugs and I hate people that associate with them.