Buddhists do not suffer for any reason, and they do not suffer morethan anyone else. Buddha simply commented on the fact that all people suffer - it is our nature and the nature of living. It might be useful to note that "suffer" includes concepts such as want more, are unhappy with, desire. long for, think we need and others. The reason for the suffering is that we all desire something more or different than what we have. This is not limited to Buddhists, all people fall into this same trap.
The cure for this, and one does exist, is to find and institute a remedy for this suffering. Fir Buddhists this has been identified as following the Eightfold Path.
Buddha discovered the Four Noble Truths
1) Suffering exists
2) Suffering is due to desire or cravings
3) Suffering can be overcome
4) Suffering is overcome by following the Eightfold Path.
Suffering is important for Buddhists because it is unpleasant, and we want to get rid of it so that we can live 100% enjoyable lives.
In essence that we have been ignorant of the laws of cause and efffect, nothing more or less.
"dukkha"
suffering
to get enlightenment free from suffering
A permanent end to suffering.
Suffering, because the eightfold path is a way to end suffering.
Buddhists believe that pain and suffering comes from desires. In the Four Noble Turths, the second states this answer.
they believe that suffering is caused by wants and when we stop wanting we will stop suffering.also they believe that the goal of life is to be free of pain of suffering
Ignorance leading to attachment and aversion, the cause of suffering.
The Buddha, a man who uncovered the truths behind why we suffer and how to end suffering.
The essence to the answer of this question is if you mean pain or suffering. If you mean pain we can say most Buddhists feel pain like anyone else; for example if I hit my nail with a hammer. However suffering is quite a different matter. To remove the suffering of attachment or aversion is in a sense the goal of Buddhism. Moving to its conclusion even the aversion to pain can removed so that this is experienced in quite a different way.
Ultimately all Buddhists aim to become enlightened. Enlightenment is the state where you are free from suffering (dukkha).
Buddhists' are against hurting themselves or other people. They believe that suffering and pain can be overcome, so I believe that most Buddhists' would be against any type of killing.