Up to now (actually, for ten years) I've only had an acoustic guitar. Only recently I've obtained an electric guitar (a Telecaster). And it is heavy -- You'll laugh, but I didn't expect it to be that heavy.
My problem is: after I spend some time practising, my back starts to hurt. So I guess that I'm doing something wrong and I have to change my habits of holding a guitar. Is there any tips or rules or something about this?
Disclaimer: I'm not a professional musician. I've always played for just myself or for/with my friends. So I've never actually learned how to hold a guitar properly...