Singers, particularly Metal/Punk/whatever Singers - how do you look after your voice?

i'm getting worried now. i think i must have ulcers and allsorts. the kind of singing i do is really really shouty and fast and loud, but that's the style. maybe i really did push it too much. it was our first gig, it lasted 15 minutes and i was terrified all the way through so maybe i overcompensated by going crazy with the vocal gymnastics.

i too come from a musical family, my mom used to do broadway and i spent my teen years being a theatre geek.

Ulcers?