Scottish walker... I am sorry, but using a bed as a bench has to rank up there with one of the all time WORST ideas I have ever heard. Really I wish you would just keep advice like that to yourself, as there may be others who know even less about weight training than you who take your advice and injure themselves. Just because something "works for you" doesn't make it okay for others. Judging by the information you have given us on the forums so far, assuming it is accurate that you have "too much muscle" and based on your current level of knowledge, I would say that you are clearly a case of good genetics IN SPITE of your lack of proper lifting technique. Unfortunately, many unfit people see someone who is fit and mistake them for authorities in fitness. Remember this little saying... follow a horse home and you will find horse parents.
Please be careful from now on with regards to advising others on this forum.
One more thing, and this is just a question off the subject... Is English your first language? Where are you from?