I have been taking enbrel for a year now
I have Rheumatoid arthritis (since aged 15) in my fingers ,wrists ,ankles and now elbow ..
I can not guarantee that taking enbrel will not cause you any side effects but in my case after and since my initial injection i have had no ill effects.
But since taking enbrel i have developed problems with my elbow which i never had before , and i have not had any improvements so i have started taking methotrexate alongside the enbrel..
In my case the enbrel didnt work but i have heard that it has helped others so hopefully things will be fine for you.
And the injections dont really hurt at all
Hope this has helped