yes they can that is an advanced skill from higher level empaths, it takes time to develop but its based on passing on energy. If you have that skill at least near perfect then you should not have nay issues.
I think to do it on purpose takes practice but to do it by mistake/unintentionally isn't really hard. Think about the feeling you get when you go to a concert that shared energy. Or how one person in a crowd can incite panic.
Empaths can push their feelings and pains onto other people. Just ask my husband. I've done it to him a few times. I personally was born an empath but I think that it's possible to learn. I have no idea how but I think it's possible. I think it would be hard but you never know.
Most are born but it is possible to learn, and a lot of people believe that it runs in families. My grandmother was a empath and accepted it, I could even see her use it upon occasion. My mother is a empath but won't believe it I feel this is the reason she is bipolar.